(A) genuine diamonds from imitation diamonds
(B) genuine diamonds apart from imitations
(C) between genuine diamonds and imitation diamonds
(D) among genuine diamonds and imitation diamonds
(E) whether diamonds are imitation or genuine
答案為C
但A和C有和不同呢?
我一直搞不清楚啊!

longman 對於discriminate A from B與discriminate between A and B
解釋好像一樣
OG也有類似的題目(忘了那一題,但記得答案很明顯是選distinguisth between A and B, 可是選這個的原因是因為distinguish A from B選項有另一個嚴重錯誤)