Unlike the wholesale price of raw wool,the wholesale price of raw cotton has fallen considerably in the last year. Thus
,although the price of cotton clothing at retail clothing stores has not yet fallenit will inevitably fall.
Which of the following,if true,most seriously weakens the argument above?
(A)The cost of processing raw cotton for cloth has increased during the last year.
(E)The cost of harvesting raw cotton has increased in the last year.
答案是(A)
可是(E)為什麼不行呢??
(E)的解釋;
harvesting costs are part of the assumed increased price of raw cotton and do not affect current retail prices.
為什麼不會影響現在的零售價格呢???