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FormosaMBA 傷心咖啡店 • 檢視主題 - 11月 JJ

11月 JJ

二戰和多戰考友探討經驗教訓, 專業分析考生備考誤區, 機經, 臨考叮嚀

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11月 JJ

文章yangyear » 2006-11-12 09:54

請問有11月的JJ嗎?    謝謝
yangyear
yangyear
新手會員
新手會員
 
文章: 17
註冊時間: 2005-05-14 12:27
來自: Kaohsiung

文章lpwpete » 2006-11-12 21:54

Math-jj-11
1.僅舉一例:一個坐標軸,從左到右4個點P,Q,W,N. 他們的絕對值是p,q,w,n。注意!是絕對值!其中p<0,其它3個數大於0.問n到p的距離,顯然就是n+p而不是 n-p) 解:見下圖:n+p 見後圖( 2.在以下一個選項中,哪個可以使x+1/x^2值最大? A. x= 0.00006(有多少零不記得了,反正是個很小的數字) B.x=0.0007? C.x=1? D.x=3? E.x=7000? 選項很可能不准,但是相對大小是這樣的。我不太會,通過畫坐標圖感覺是選A。希望考過的朋友補充。 註:是在所給選項x的值裡挑能使那個式子數值最大的一個 解:待補充 3.題目記不住了,大意是從圓心以10,20,。。。,80度為頂角分割一個圓,但是這八個扇形的順序不是按頂角為10~80度的順序來的,是可以自由變化的,這樣在圓上有八個點組成一個八邊形(octagon),問這個八邊形的內角最大能為多少。 D.165 E.170 madi的回憶:一圓分別以10, 20, 30, 40, 50, 60, 70, 80八個角度分成八段弦,兩兩連接起來使之成為八角型,問八角型最大的內角幾度看著難,其實還好,如果頂角是10度,又是等腰三角形,那麼每個底角是85度。頂角為20度則底角為80度。最大的內角為兩個相鄰底角的和,最大為85+80=165,我覺得選d。 解:165 4.此主題相關圖片見後圖 題目挺長,說一個用於裝燈泡(light bulbs)的盒子(package)裡有一個長方形的隔板(a rectangular insert),給了盒子的長寬高,分別是120和80、80,還有盒子的側面圖。那個隔板是折疊了兩次,將盒子分成了四個同樣的格子(identical compartment?),求隔板的面積。 我算得是B。長為100+80+100=280,280*80=22400! 註:就是在一個盒子裡,放入一個折疊過兩次的長方形紙板,將盒子分割為四份。紙板和盒子是兩碼事 解:畫一個立體圖,即求圖中紅色區域的面積,分三部分,第一個斜的切面,寬為80,長為直角三角形的斜邊,由一條直角邊為80(即寬)另一條為長的一半120/2=60,則求得斜邊長為100,同理,第二個切面和第一個一樣,中間的切面長為80,因此得一下公式 這個紙板被折了三次,所以是100+80+100 長是280=100+80+100 寬是80 280*80=22400 在此特別感謝amy7777的解答! 5.(**7)^20的各位數是?底數不記得了。 1 解:1 1*7=7,7 *7=49,9*7=63,3*7=21,一共四次一個循環,(只看個位數),然後再循環,由20/4=5,於是,五次完整循環後,最後落在1上 6.根據madi的回憶,我才想起這個題:某車在城市一加侖汽油可跑10 miles,在高速公路上一加侖可跑25 miles,問此車在城市跑20 mile,接著在高速公路上跑 30 miles的平均效能。 答:一共享了3.2gallons,行駛了50miles,所以50/3.2=15.625miles/gallon.選項好像是個近似值。 解:一共的gallon,20/10+30/25=3.2, 50/3.2=15.625 7.整數n是四個質數的乘積,四個質數中有兩個相等,問整數n一共有幾個除數,包含1和n本身? A.5 B.8 C.9 D.10 E.12 解:E N=X*X*Y*Z 1 n X y z Xy, xz, x^2, yz YX^2 ZX^2 XYZ 8.一個整數數列S,後一個數等於前兩個數之和(即Sn=Sn-1 + Sn-2),問該數列第6個數是多少? A.數列中第一個和第二個數之和為7; B.數列中第三個和第四個數分別為7,12; 解:B 文中的S具有迷惑性,注意,把它當成an=an-1+an-2來看 由第一個只知道a3,但不知道a4,,第二個a3,a4都求得,可求出a6=a5+a4=a4+a3+a4 9.問一個等邊三角形的內切圓和外接圓的面積比是多少? 解:內切圓的半徑為三角形高的1/3,外接圓的半徑為高的2/3 設高為h,則面積比為(1/3*h)2/(2/3*h)2=1/4 10.一個工廠一天最多可以生產800個A產品和400個B產品,賣出一個A產品可以獲利$ 10,賣出一個B產品可以獲利$ 3,如果該工廠當日生產當日買(意思就是不考慮有存貨吧)1000個產品,為了利潤最大化應該生產A, B產品各多少? A.900個A產品和100個B產品; B.800個A產品和200個B產品; C.600個A產品和400個B產品; D.500個A產品和500個B產品; E.400個A產品和600個B產品; 解:B 11.有8液體盎司(fluid ounce)的水灑在地上形成圓形,並且滲入地下1/8英吋(應該是說形成圓柱體的意思),問所形成的這個圓面的直徑是多少英吋?(1液體盎司=1.8立方英吋) PS:這題只能估算,當時我做錯了,答案應該選12吧。 解:12 圓柱體體積為1.8*8, Pi*R2*(1/8)=8*1.8 直徑=2*R=12 12.某人在銀行存錢,A:以r % 的單年利率存入x元,B:以t % 的單年利率存入y元,問如果存期相同,A的利息收入是否大於B? A. 0 < x < y < 2x ; B. 0 < 2t < r 解:C r%*X t%*Y because B, 2t < r, t<r/2 A, y<2x AB相乘,yt<xr, 13.某人存入銀行6000元錢,銀行按照季度結算利息,計復利,前三季度利息分別為130,145,125,如果全年獲得總利息收入為本金的10%,問第四季度利率是多少? PS: 原文沒有說每季度利率一定相等 A. 3% B. 9% C. 2% D. 11% E. 15% 解:A 復利計算的基數應該是本金+累計的利息,所以 第四季度利率=第四季度利息/(本金+前三季度利息和)=200/(6000+130+145+125)=0.03125 感謝Bill06的解答! 14.(x + y)^2 + 2(x + y) +1 =0, 如果 x – y = n, x 等於多少? 解:(n-1)/2 (x+y+1)^2=0 X+y+1=0 x-y=n x=(n-1)/2 15.一個俱樂部,所有成員到齊時5個人組成一組討論正好分完,問俱樂部一共有多少人? A.如果有一個人缺席,剩下的人4個人一組討論正好分完; B.這個俱樂部的人數在10到40人之間; 解:C 題目的意思是總數n可以被5整除,A是n-1可以被4整除 由此得出:N= 5 10 15 20 25 30 35 40 45 N-1= 4 9 14 19 24 29 34 39 44(大於40) 16. DS(m-n)/m - (m-n)/n>1? 有個選項可以推出mn〉0 解:待補充 17. DS 一個公司的平均銷售在5--500嗎? (1)總銷售,四捨五入到1,000,000,000是x (2)共有人,四捨五入到1,000,000是y 具體記不清楚了,不過5y=x 解:待討論和補充 18.坐標軸上有八個點,另給定2x+3y >=10(忘記正確數字),問符合條件的機率。 解: 誓不低頭重生解答:這題考查主要是坐標軸知識。 把2x+3y >=10(忘記正確數字)化簡為直線y>=-2/3x+10/3 再再坐標軸上畫出來是一條過(0,10/3)和(5,0)的直線然後看這8個點 具體落在什麼位置哪幾個是y>=-2/3x+10/3 的範圍(假如是N)概率就是N/8 不知對不對 如果沒有圖但是知道點的坐標也行 19.某車在城市一加侖汽油可跑10 miles,在高速公路上一加侖可跑25 miles,問此車在城市跑20 mile,接著在高速公路上跑 30 miles的平均效能。 解:同6 一共的gallon,20/10+30/25=3.2, 50/3.2=15.625 20.一筆錢存進銀行六年,復利計算,問利息增加了多少。 (1)第六年的金額比第四年多1.5倍 (2)本金=1000 解:C 21.一圓分別以10, 20, 30, 40, 50, 60, 70, 80八個角度分成八段弦,兩兩連接起來使之成為八角型,問八角型最大的內角幾度 解:同第3題,165 22.袋子裡各有紅,黑,藍豆子各50顆,問要抓出幾顆後才會至少有14顆豆子是同色 解:40顆,因為極限情況是,每個都取13,13×3=39,再取一顆,有14顆是同色) 23 The function f is defined for each positive three-digit integer n by f(n) = 2x3y5z , where x, y and z are the hundreds, tens, and units digits of n, respectively. If m and v are three-digit positive integers such that f(m)=9f(v), them m-v=? (A) 8 (B) 9 (C) 18 (D) 20 (E) 80 解:D 同GWD30-2 感謝pex066!! Q2: The function f is defined for each positive three-digit integer n by f(n) = 2x3y5z, where x, y and z are the hundreds, tens, and units digits of n, respectively. If m and v are three-digit positive integers such that f(m) = 9f(v), then m-v = ? A. 8 B. 9 C. 18 D. 20 E. 80 解:x, y and z are the hundreds, tens, and units digits of n 你把f = 2x3y5z, 用f和f(v)分別帶入 9是3的2次方既然f = 9f(v), 說明 m的x,y,z=v的x,y+2,z .而y是十位數 所以 m比v 大20 24. If x2 + y2 =1, is x + y =1? (1) xy =o (2) y = 0 解:E 25。when N is divided by 10 reminder is 1 and when N is divided by 3 remainder is 2. what is the remainder when N is divided by 30? 解:11 26.X = (1-1/2)(1-1/3)(1-1/4).....(1-1/50) what is the value of X 解:1/50 27. X=-1, what is the Value of X+ Xn + Xn+1+Xn+2 where n is the sum of first 404prime numbers 解:-2 主要判斷n的奇偶性n is the sum of first 404 prime numbers, so N is odd(403個奇數的和為奇,加2仍為奇) 28. the price of a share is x$, this is increased by r% and then again increased by y$ what is the ratio of the increased price to the original price? 解::(X*R%+Y)/X 29. THere are 8 players and each player plays with each other player only once. every game involves only two players. waht the total number games that can be played? 解:28(C28) 30.there are 50 Black beans, 50 Red beans and 50 green beans in a jar. waht are the minimum number of beans to be picked to ensurethat atleast 14 of one color are picked? 解:同22題,40顆 31.there was a DS problem on the number of installments to be repaid for a loan with compound interest. 解:待補充 32.what is the area made by line segment y =-x+4 with the coordinate axes 解:8 方程在x,y 軸的截距都為4,4*4*1/2=8 33.there is a line segment L, the x-intercept of this is -ve. is y intercept of this line > x intercept. 1) (dont remember) 2) slope of the line is negative 解:待補充 34. slope of the line is negative 解:待補充 35.a circle is divided in to 8 non overlapping arc of 10,20,30,40,50,60,70,80 degrees each 解:同第3題,165 36. is XZ>YZ?? 1) XYZ=0 2) X>Y 解:E 37. DS 一個公司女的有70%,問公司員工的平均年齡超過55不 ,具體條件記不清楚了...大概第一個是說女的超過75的的百分比,另外一個告訴的是男的超過某年齡的比例 解:待補充 38.給了6個確定的數字和X,應該是2 3 4 5 7 9 和X.問X是不是>=4 條件1:median 是4,條件2是X比median大 解:D 39.給了6個數字,不記得數字具體是多少。反正說是最小的那個數字加3,最大的加2,最小的加1,問range是多少。我選的7。這道題目很簡單。 解:待補充 40.一個大圓的半徑是X+r,小園是r. 問大圓比小圓大好多? 很簡單... 解:如果問的是面積的大小,則pi[(X+r)^2-r^2] 周長則2piX 41.DS 2^K除以十的餘數是多少? 條件1) K可以被4整除 條件2)K可以被6整除。我選的A 解:A 2k看k的取值來判斷2k的個位數是多少,2k當k=4的倍數,4,8,12,個位數都為6,條件二 無法判斷 42.一個東西的價錢是X.第一次漲價r%,第二次漲價了p元。問總共兩次的increase是X的百分之多少? 解;同28 :(X*R%+Y)/X 43.DS 一個人從家到某地的距離200miles,問她到那裡能三個小時內到不? 1)給了時速大於某值,似乎是72kilometers 。 2)是給了每秒鐘跑多少米。不好意思數字記不清楚了, 不過題目很簡單,只是大家注意以下它給的條件的單位都是不一樣的,注意換算一下子。 解:D 已知速度,可以求時間 44.(7-1) /( 42-7) =多少?(也可能是42-9)答案是把負的指數都換成正的那樣,就是把42換到分子上來。大家自己算算吧。 解:6776 45.DS 圖書館有70%的書是nonfiction, nonfiction裡面某種類別的比其它的nonfiction多三百。問圖書館一共有多少書? 條件1)圖書館的nonfiction有多少 2)圖書館的那一種nonfiction有多少 這個題目不是很難,就是很難讀懂,我讀了很久。後來覺得它的意思就是圖書館首先把書分成fiction和nonfiction,然後nonfiction再分類 解:D 46.有5個車排一排,它們對著同一個方向。3個黃,一紅,一個藍,問有多少種排法? 解:20 Feifei六-24 五輛進行全排列P(5 5),由於3 兩紅車是不可分辨的,也就是一樣的,沒區別,這樣就要去帶掉3 輛紅車的排列情況,為P(3 3),則共有P(5 5)/P(3 3)種方法 47.說一條線的斜率2,而且y軸截距是1。問下面哪個點在直線上。 算算直線方程把點帶進去就是了 解:由條件得方程為y=2x+1,將坐標代入 48.一條線有兩個點 (3,-1) (8,?) (sorry,我的記憶力好像很不好...回憶不起來)。問於X軸的交點 解:根據兩個點可以求得直線方程,令方程Y=0則可求X軸交點。 49.一個數字除以三餘數是1,除以10餘數是2,問除以30的餘數 解:22 50.一個人存了一筆錢2000,復利計算,年利率是1.1%,問三年和兩年的利息的差 解:2000*(1.0113-1.0112) 51.m,p, s and v are positive integers. m/p < s/v, which of the following must be between m/p and s/v? I. (m+s)/(p+v) II. ms/pv III. s/v-m/p 答案是 only I. 試過很多數都是對的,但很難證明。後來想任何m/p,s/v都可以化成a/x,b/x分母相同的繁分數,這樣是可以證明出來的,也就選了。 解:1 52.2m3n5r=360 問2r3m5n=? 後來的字母順序可能有記得不清楚,但是只要把前面的算出來代入就可以.我算出的是M=3,N=2,R=1 解:1350 把360因式分解,可得出M=3,N=2,R=1,再求2r3m5n 53.有一個4X4的正方形,各個角的點和對角線的交點加起來是41個點,如果把這個正方形的一邊延長成為4X8的長方形,那麼共有多少個點? 解:77 因為兩個象交的4*4的圖中有5個點是重合的.(畫出圖就很容易明白了) 所以,41+41-5=77 或5*9+4*8=77 感謝guojunnz Nolayang的解答! 54.有8液體盎司(fluid ounce)的水灑在地上形成圓形,並且滲入地下1/8英吋(應該是說形成圓柱體的意思),問所形成的這個圓面的直徑是多少英吋?(1液體盎司=1.8立方英吋) 解:同第11題 12 54.一個商店賣手提袋,有裝A的,有B的,有裝C的(記不得是什麼了,但不重要),但至少有裝一種東東,給你一個表格:裝A,B的有5個,裝B和C的有5個,裝C和A的有6個,裝A,B,C的有3個,所有的包中,裝A的共30個,裝B的共24個,裝C的共20個,問一共有多少個包。 討論:其實就是9月jj的變形題,用30+24+32-5-5-6-3*2就可算出來,共64個,裡面的數字是我自己湊的,但是最後結果好像就是64個。 解:64 55.. 中數問題,也比較簡單, Rate Frequence 5 124 4 138 3 54 2 28 1 17 問rate的中數,比較簡單。數字也不是真的,但思路是正確的。 解:4 56.p, q, r are constant, f(x)=p(x^5)+q(x^3)+rx, p+q+r=? (1) f(-1)=5 (2) pqr<0 解:A 57. in 1984 one dollar could buy 252 Japanese Yen, in 1995 one dollar could buy 89 Japanese Yen, how much more dollar need to buy 10000 Japanese Yen in 1995 than in 1984? 解:73(近似值) 10000/89-10000/252 58.k and m are consecutive even number, does k > m? (1) k+2 and m-2 are non-consecutive even number (2) k-1 and m+3 are consecutive odd number 解:D 59.Set S are all integers of multiple of 2, set T are all integers of multiple of 4, does the integer m have the property of in set S but not in set T? (1) m is an even number (2) m/2 is an odd number 解:B 60.一個長方形的屋子地面有兩塊圓形污漬,面積均為pie/100,污漬圓心離最近的牆的距離大於3,問一個圓形地毯是否可以遮蓋住兩塊污漬? (1) 地毯的面積是9pie (2) 兩塊污漬的圓心相距4 解:C 已知2圓心距和圓形污漬的面積,可求得地毯的直徑,看看給得1地毯的面積中的直徑,比較兩個大小 61.這道題我看到已經有人寫過了,就是一個圓分成八份,弧對應的分別是10、20、30、40、50、60、70、80,問八個點連接起來的八邊形最大角度數? 解:165 62.x and y are integers, 8^x < 4^(y+1)? (1) x < y+1 (2) 3x < 2y+2 解:B 63.k is an integer, what is the remainder of (k^2)/8? (1) k divided by 2, the remainder is 1 (2) k divided by 3, the remainder is 2 解:A 由1得k 為奇數,(k^2)/8的餘數得1 2 得不出 64.330 is the factor of the product of first n consecutive positive integers, what is the least possible n? 解:11 把330因式分解 65.一條數軸,上面依次wxyz四點,且wxyz<0,問你那兩個乘起來must大於零呢,呵呵。xy 解:xy 由條件得,wxyz<0,則z>0,w<0,x<0,y<0或者z>0,x>0,y>0,w<0,在這兩種條件下,x,y同號 66.A多少多少,B多少多少,問你A增長overB多少,結果出來的時候,沒一個答案是對的,嚇一跳。原來只要選closest to. 很多什麼中數增長率的題目,數字很多要看得仔細。 解:待補充 67. 18 wooden track, the average length is 12 feet. how many 9 feet track should be placed to make the average length 10 feet. 解:36 設需要放x個feet track,(18*12+9x)/(18+x)=10,求得x=36 68. ps. 0<a<b, what is the max. common factor of r^a*s^b and r^b*s^a 我選的r^a*s^a 解:rasa 求最小公因數 69. 60% of students were vaccinated with Rxx and 70% wtih Mxx, what is the % of students vaccinated with both. (KEY-didn't say how many wasn't vaccinated at all.) A-10% B-25% C-45% D-65% E-80% (my asnwer is C because is has to be between 30% and 60%) 解:C 因為V是0.6,M是0.7,V交M最大可是0.6,最小可是0.3.在選項中只有C(0.45)在0.3—0.6之間 0.3=0.7+0.6-1 70. Machine A makes 7000 products in 8hrs, B makes 7000 in 2hrs. One day A worked twice as long as B, ask what's the ratio of A's product to the total products? answer 33.3% 解:1/3 設B的工作時間為t,根據題意得:A的工作時間就為2t A products: (7000/8)*2t B products (7000/2)t 求A/(A+B)=1/3 71.f[x] is defined to the closest number equal or less x, f[y]=2, f[x/3]=? answer 0 解:待補充和討論 72.(this one I absolute don't remember the details, sorry) JiHe problem - number of P is twice as M, MP together is 1/2 of M only, total number of MP together is 5000, ask P only. Answer 10,000 - reasoning M-only has 1 unit, MP together 2 units, and P only 4 units (because (4+2)=2x(1+2) 解:25000 Tachao解答:應該是集合問題(類似1) P + M = (P only) + (M only) + 2(MP together) MP together 應該是指MP的交集部分 so M only = 10000 M = M only + MP together = 15000 P = P only + MP together = 2M ==> 30000=P only + 5000 so P only = 25000 注意only的作用 73. DS 8^2x < 4^(y+1)? 1) x<y+1 2) 3x<2y My asnwer is E. Try to substitute different numbers satisfy both condition and the asnwers could be <,=, or >. 解:E 原不等式化簡得26x<22(y+1) 得3x<y+1 條件1,2都不充分 74. Asking the total distance of a tiangle, whose 3 points are (-4, 3) (3,4) and (-1,1) on the XY-plane. It aslo said something about the points were on a lake, come with a drawing too. Answer 17. (-4, 3) to (3,4) is 50^2 the other two are 5 each. The total is estimated. 解:501/2+5+131/2 題目主要考察兩點距離公式:[(y2-y1)2+(x2-x1)2]1/2 三條線斷的距離分別為501/2、5、131/2 相加得周長 75.DS X is left of Y and Z, is XYZ<0? 1) XY<0 2) YX<0 E because the asnwer depends the relative position of Y and Z. 解:題干有問題,待補充 76. DS 700 of tickets were sold, and ticket price to the students is half that to the none-students, ask how many were sold to Students? 1)Total revinue is $2500 2) The total price of 1 student and 1 none-student ticket is $6. 解:C 設學生票價格為p 非學生票的價格為2p 學生票一共賣出了x張,非學生票一共賣出了700-x張 題目主要求x 1 得 px+2p(700-x)=2500 兩個未知數,單獨求不出 2 得 p+2p=6 單獨求不出x 1+2可求得x 77. DS A 3-digit integer, what is the unit digit? 1)product of all units = 54 (or 56) 2)sum of all unit >16. (sorry this was my last question which I didn't have time to read close enough to figure out.) but not hard though. 解:待補充和討論 78. PQ=77, ask P-Q? 1) 1<P/Q<1.6 2) don't remember, but the answer was C 解:待補充 79.There is one more I remember, but couldn't draw - 4 lines interect each other forming a "#" not necessarily //. 4 corner w, x, y and z. ask x+z=? 1) w=95 2)z=125 Answer is D for sure 解:C 見GWD1-22 四邊形四個內角的和等於360度, 四個外角的和也等於360度, 題中x, y, z, w分別是四個外角, 所以已知z和w就可以求出x+y 即 x+y=360-z


CR-jj-11
1. 安靜VS寂靜 11/2 北京 670 AWA/MATH/CR/RC
http://forum.chasedream.com/dispbbs.asp ... 090&page=1
1) 只記得一篇,爲了解決美國醫務費用過高,採取了什麽什麽辦法,但是失敗了。裏面有hospital chain之類的,作者指出失敗的原因並提出解決方案
2. coffeeaddict 11/3 MATH/RC/CR/SC
http://forum.chasedream.com/dispbbs.asp ... 265&page=1
2)關於deer tick的
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally deer ticks pick up the bacterium while in the larval stage from feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease would likely decline.
Which of the following, if true, most strengthens the argument?
A. Ticks do not suffer any adverse consequences from carrying the bacterium that causes Lyme disease in humans.
B. There are no known cases of a human’s contracting Lyme disease through contact with white-footed mice.
C. A deer tick feeds only once while in the larval stage.
D. A single host animal can be the source of bacterium for many tick larvae.
E. None of the other species on which deer tick larvae feed harbor other bacteria that ticks transmit to humans
據說答案是C。
3)還有一題,說×××畫家的老婆的很多畫肯定不是她自己的,而是她丈夫的,因爲沒有發現任何評論是關於她的畫作的。反對者說:她的畫和她丈夫的畫在使用什麽技法啦,光線啦都不一樣,所以肯定不是她丈夫的,是她自己的,問下面那個選項如果屬實,加強反對者的意見。我選的是發現有傳記說她有畫作。
[此貼子已經被作者于2006-11-10 10:18:15編輯過]
11月6日~11月10日
1. owen0410 11/7 710 AWA/math/cr
http://forum.chasedream.com/dispbbs.asp ... 230&page=1
4) 商家發現使一些商品exposure to顧客more能夠增加商品A的銷量。因此,爲了增加A的銷量,某店決定把人們要購買的生活必需品放在店子的最裏面,這樣顧客購買這些生活必需品就必須go past 一層層的擺放著A商品的貨架。問:評價 大概確定
我選e: 顧客是否會因爲購買生活必需品的不便而放棄走到最裏面去買生活必需品
5) 關於rabbits overgrazing
GWD-29-Q37
Rabbits were introduced to Numa Island in the nineteenth century. Overgrazing by the enormous population of rabbits now menaces the island’s agriculture. The government proposes to reduce the population by using a virus that has caused devastating epidemics in rabbit populations elsewhere. There is, however, a chance that the virus will infect the bilby, an endangered native marsupial. The government’s plan, therefore, may serve the interests of agriculture but will clearly increase the threat to native wildlife.
Which of the following, if true, most seriously weakens the argument?
A. There is less chance that the virus will infect domestic animals on Numa than that it will infect bilbies.
B. There are no species of animals on the island that prey on the rabbits.
C. Overgrazing by rabbits endangers many of the plants on which bilbies feed.
D. The virus that the government proposes to use has been successfully used elsewhere to control populations of rabbits.
E. There is no alternative means of reducing the rabbit population that would involve no threat to the bilby.
Ans: C
6) 統計發現,在挫折過後重新獲得成功的人都制定了一個明確的目標,而在挫折過後沒有重新獲得成功的人沒有制定一個明確的目標,所以有人認爲:制定了一個明確的目標能讓人在挫折過後重新獲得成功。問:logic flaw.
作者選e : 那些人忽略了制定一個明確的目標是挫折過後重新獲得成功的人的造成的結果,而不是它的起因 (就是說可能顛倒因果)
2. Cliffyin 11/09 710 上海 AWA/Math/RC/CR
http://forum.chasedream.com/dispbbs.asp ... 762&page=1
7) 見5)說兔子太多所以破壞環境,使用藥物可以控制兔子,可是會影像到另一個動物的生存。說使用該藥物會對環境好,可是會影響瀕危動物,有以前機井,答案爲兔子會破壞這種瀕危動物吃的東西。
8) 說養魚的人可以給魚吃蔬菜類食物,或動物類食物,應爲吃動物類食物魚長的塊一些,有一種新的食物,很貴,使用他的投入會比使用其他食物貴,可是賣主說還是會有養魚的買,問爲什麽:1說魚喜歡吃新食物2說魚吃這個食物含更多卡路里3說賣主至少會在推廣期打一次折,我選增加卡路里那個。應爲有可能長的更快,和文中的魚長的塊對應。
9) 說有池塘被什麽東東污染,政府建議人們不要吃這裏面的魚,說某地區的人只要知道政府公佈的小區的被污染池塘數是否增加就可以知道該地區的池塘污染數是否增加了。答案爲有些池塘的那個東東太多,都沒有什麽生物了,所以政府已經放棄了,公佈時不會計算這些池塘。
10) 說投資銀行的地位比較特殊,當他找商業銀行借錢的時候是消費者,當他爲其他客戶服務,評價商業銀行的資産健康的時候又是其他客戶的服務提供者,問採取何種措施可以使投資銀行在這2個過程中公正對待商業銀行。
3. yiyi1985 11/09 790 南京 AWA/SC/CR/RC/MATH/
http://forum.chasedream.com/dispbbs.asp ... 624&page=1
11)有一題是life span 的比較,絕像GWD某題,說什麽是老年人的壽命長了,結果選削弱,選是小孩的死亡率低了


RC-jj-11
1 公共物品的悲劇
Version 1
第二篇是關於an economic term "tragedy of the commons"公共物品的悲劇,我本身就是經濟學專業的,一看這個主題我就樂了,文章不長,30行的吧,題目需要認真回答。
關於Tragedy of the Commons的解釋
Suppose that land is communally owned....If a person seeks to maximize the value of his communal rights, he will tend to overhunt and overwork the land because some of the costs of his doing so are borne by others. The stock of game and the richness of the soil will be diminished too quickly....
A “commons” is any resource used as though it belongs to all. In other words, when anyone can use a shared resource simply because one wants or needs to use it, then one is using a commons. For example, all land is part of our commons because it is a component of our life support and social systems
A commons is destroyed by uncontrolled use – neither intent of the user, nor ownership are important. An example of uncontrolled use is when one can use land (part of our commons) any way one wants
2 美國醫務費用過高
Version 1
只記得一篇,爲了解決美國醫務費用過高,採取了什麽什麽辦法,但是失敗了。裏面有hospital chain之類的,作者指出失敗的原因並提出解決方案
3 兩種market
Version 1
提到香港的wet market仍然盛行,僅管supermarket在歐美為主要購物方式。民眾普遍認為wet market的生鮮比較新鮮,但奇怪的是wet market缺乏現代化的冷凍設備。
4電腦技術在環境科學的應用
Version 1
電腦技術在環境科學的應用,隨著電腦的進步,使得學者更可以分析local的資料
Version 2
以前在環境學科裏,computer只用來收集資料。但現在computer programming發揮了更大的作用,能有助於make decision. traditional model cannot solve some immediate and local problems. but computer programming can. computer programming can also help to manage urban growth. 例子是,可以決定水裏的某種生物是不是endanged,從而決定是不是要採取措施保護
5美國經濟成長的因素
Version 1
影響美國經濟成長的因素,以往的觀點認為其主因只是因為增加inputs,最近則認為除了勞工和資本的投入增加外,還有生產效率的因素
6 一個策略
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talked about a strategy followed by the companies to improve the employee productivity and ultimately the profits of the company. But this could improve the productivity that too only after 2yrs and then the second para an alternate approach is explained and it is concluded that the second one bears better fruits.
7 nurses profession
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This describes a research done by some lady on the ideology of nurses profession. This was about the nurses and some ideology about their profession. Earlier no training was thought necessary cos these nurses were considered "naturals" in their profession like other females. but them later the hospital authorities in order to attain their goals they thought that a professional training for nurses was necessary. but then they interfered with training heads in deciding the content to be taught etc.. then it ends saying something like for the above reasons, this profession could not be treated to be on par with the docs etc.
8 the importance of women
Version 1
Historians trying to establish the importance of women in old times studied some woman's suffrage movement in relation to a particular revolution in Ireland (i don remember exactly..).. but this gave a distorted view because they dunno how many women actually participated and stuff like that.
Version 2
RC是講歷史學家研究 I 國的婦女歷史,結果由於利用了別國的研究方法導致結論上有偏差(主題題,100%),因爲實際上婦女的運動特徵不能僅僅用別國所謂的婦女選舉權運動爲標準來看的,還應該考慮其他的比如說運動的階級構成和它的經濟背景。第二段詳細講了偏差的緣由,要仔細看這一段有兩道細節題,有幾個選項有一定的誘惑性
Version 3
關於婦女的suffrage的
9 天體撞擊(會不會是:GWD 17 Q35-Q37 - 月球表面的洞?請大家討論來確定)
Version 1
一些天體撞擊了planet後,會使得planet表面的東西飛出去,然後留下一個坑。傳統觀點認爲,凹下去的地方物質少了,引力會減少,導致引力會比周圍地方小。但是在月球early history裏,月球表面有很多坑,其引力卻比周圍地方大。原因是凹下去的地方深層的mantal又長出來,使得這個地方的物質比周圍的要dense,以至於引力沒有減小,甚至增加。但是隨著月球的某些變化,這些新長出來的物質越來越少,所以引力的減小或增加就沒有那麽明顯了。
Version 2
某種天體的發現的意義, 其中一個意義是the object is the miss link that ice drawft originated ** belt.
Version 3
Here is the article for #9 RC. (由shamrock100提供,請大家確認)
When a large body strikes a planet or moon, material is ejected, thereby creating a hole in the planet and a local deficit of mass. This deficit shows up as a gravity anomaly: the removal of the material that has been ejected tomake the hole results in an area of slightly lower gravity than surrounding areas. One would therefore expect that all of the large multi-ring impact basins on the surface of Earth’s Moon would show such negative gravity anomalies, since they are, essentially, large holes in the lunar surface. Yet data collected in 1994 by the Clementine spacecraft show that many of these lunar basins have no anomalously low gravity and some even have anomalously high gravity. Scientists speculate that early in lunar history, when large impactors struck the Moon’s surface, causing millions of cubic kilometers of crustal debris to be ejected, denser material from the Moon’s mantle rose up beneath the impactors almost immediately, compensating for the ejected material and thus leaving no low gravity anomaly in the resulting basin. Later, however, as the Moon grew cooler and less elastic, rebound from large impactors would have been only partial and incomplete. Thus today such gravitational compensation probably would not occur: the outer layer of the Moon is too cold and stiff.
10 一種pond
Version 1
有一種pond,約是底部鹽分越多,溫度也越高。但池裏有了些alge,導致池喪失了作用。科學家想了一種辦法殺死這種alge.
Version 2
11 月RC jj有一篇有關solar pond的原文(由hanvivien 提供,請考過的牛牛確認下)
我拷屏以後照著打的,沒有檢查,大家湊合看.
Solar ponds are bodies of water in which circulation is incomplete and there is a very high salt concentration that increases with depth. This vertical change in salinity serve to trap heat because concentrated brine in the lowest water level acts as a collector and storage area for solar heat, while the less saline, lighter water at the upper levels provides insulation. Heat is thus retained in the depths.
An artificial pond of this type has been constructed on the western shore of the Dead Sea in Israel in order to test ints suitability as a source of low-grade heat for conversion into electricity. An immediate threat to the success of the venture was the was the growth of algae. Water in solar ponds must be kept maximally transparent to allow penetration of light to the deep storage area. Therefore, any particles of matter in the water, such as algae cells, that scatter or absorb light will interfere with the collection of heat.
One proposed method of the controlling the algae was the application of an algicide. However, the Dead Sea is a closed body of water without any outlet and as such is very easily contaminated. Extensive use of chemicals in numerous future full-scale solar ponds would lead to such contamination of the Dead Sea, which now enjoys a lucrative tourist trade.
A recent experiment has supplied a more promising method for controlling the algae. To repress the algae cells' capacity for accommodating themselves to environmental changes, the water in the solar pond was first made more saline through evaporation and then diluted by a rapid inflow of fresh water. This shock reduced the cells' ability to regulate the movement of water through their membranes. The rapidly absorbed water, resulting in distortions of shape, increase in volume, and impairment to motility. Their buoyancy adversely affected, the cells sank to the bottom of the pond, where they encountered the hot waters of the storage layer and were destroyed. This method allows for effective control of nuisance algae while leaving solar ponds as one of the cleanest technologies providing energy for human use.
11 大腦
Version 1
最後一篇是說大腦裏的血管和身體裏的不太一樣,在進行血液交換時會阻止某些物質進入大腦,以防止這些物質影響神經傳送信號,但這種功能也會組織某些作用大腦的藥物到達大腦。第二段說科學家發現,某種物質叫E××××,起關鍵作用,下面就是分析E×××××的工作原理
Version 2
有一篇第一部分說人腦有一個膜,有血管組成,能夠防止血液中太多雜質的東西進入腦部。第二段說這個膜由什麽東西組成,而該東西如何工作以防止血液中的雜質進入腦部。但是身體的其他地方也有這個東西,而他在其他地方的這個東西功效和在腦部不一樣,這要由該物質的具體生物狀態來分析。
主題題:2個答案比較tricky,1說總結某個生物研究,2說解釋某個生物現象。
細節題:在身體其他地方的那個物質和在腦部的有何不同。
12 美國中產階級婦女
Version 1
倒數第二篇是說美國中產階級婦女在19世紀(還是18世紀,記不清了)的政治覺悟爲人所知,但很多貧苦婦女的政治和生活地位沒人關心,有一個人寫了本書,反應貧苦婦女的生活狀況,接下來就是說這本書的,不太難,但是長文章。仔細點就好了
13親屬關係(kin)
Version 1
美國19世紀殖民時期親屬關係(kin)在某種行業(craft)中的發展, 給出了2方學者的觀點
14 抓到黑人走私
Version 1
一個歷史事件(美國在海上抓到黑人走私),一個學者關於這件事在關於奴隸法律方面作用的研究, 文章討論的此學者成果的成功之處和缺點
15 一種bond
Version 1
介紹了有別於traditional insurance bond的另一種bond, 風險更大,收益也大
16 經濟學
Version 1
還有一個是講經濟學的文章,比較簡單,第一段說的是在研究經濟發展的時候應該重視要素生産率而非僅僅是勞動或是資本的投入。(學過經濟或管理的人應該知道,這其實是一個宏觀經濟學的理論流派,不知道也沒關係其中沒什麽難的概念)。第二段詳細分析了爲什麽要素產出率比那些個單位投入重要。題目都是很直白的
17 管理學
Version 1
最後一個是管理學的文章。第一段說的是企業一般都喜歡重視技術創新,因爲它有吸引投資人,帶來巨大經濟回報等優點(細節題,四個列舉嘖嘖),因此企業傾向於鄙視其他方面的創新,並且樹立了一套利於評價産品創新而鄙視其他的績效評估標準(infer題,問你符合作者的觀點,有一個選項說是員工在其他方面的創新被鄙視了,80%)。第二段說的是這種對産品創新的會導致企業結構文化上的衝突。比如你沒有好的營銷或者運營手段,有産品也沒用。最後得出結論,說是産品的設計並不足夠還需要結合財務營銷運營等部分才能稱得上競爭力。(來一道主題題,說是指出一種並不足以構成企業成功的策略,文章結構很明顯,其他幾個選項都沒什麽誘惑性。)
Version 2
還有一篇就是以産品革新爲主不是公司最佳strategy那一篇。
18華裔移民
Version 1
Something about study of the Chinese Immigrant need to be based on the immigrants letter.
Version 2
華裔移民: 說研究華裔移民以前用的資料基本是來自於他人,建議使用移民自己的文件,比如信件什麽的。
Version 3
1 letter在中國移民過程中的重要性!
19 people's ethic background
Version 1
Doctors should take into considerations of people's ethic background, used example of Hispanic Mexican.
20
Version 1
Business writing competition...
21利率與經濟
Version 1
先說關於利率和經濟(投資)關係的傳統觀點,再距離說70-80年代和現在的現象用老觀點無法解釋,所以還要考慮其他因素,比如外來投資。
22品牌效應
Version 1
先說以前品牌效應對買家和賣家的好處。再說現在出現的現象削弱了品牌效應,比如互聯網出現,還有人群差別,提到老年人的特徵。最後說了賣家間的價格競爭和相互複製的影響。
23 社會
頭像
lpwpete
高級會員
高級會員
 
文章: 358
註冊時間: 2005-12-08 13:44

文章yangyear » 2006-11-13 03:29

謝謝 真的很感激~ 請問這些要去CD的哪裡找比較多 謝謝~
yangyear
yangyear
新手會員
新手會員
 
文章: 17
註冊時間: 2005-05-14 12:27
來自: Kaohsiung

文章misia » 2006-11-13 23:10

雞精在CD的【GMAT机经专区+数学讨论】裡喔
祝福你考試順利也祝福我自己!! :laugh
misia
新手會員
新手會員
 
文章: 13
註冊時間: 2005-05-04 00:18

文章yangyear » 2006-11-14 04:01

謝謝~ 祝妳考到高分~
yangyear
yangyear
新手會員
新手會員
 
文章: 17
註冊時間: 2005-05-14 12:27
來自: Kaohsiung


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