prep cr

saber0425

4.   (24257-!-item-!-188;#058&001200)

Which of the following mostlogically completes the argument?

A new machine for harvesting cornwill allow rows to be planted only fifteen inches apart, instead of the usualthirty inches.  Corn planted this closelywill produce lower yields per plant. Nevertheless, the new machine will allow corn growers to double theirprofits per acre because __________.

(A) with the closer spacing of therows, the growing corn plants will quickly form a dense canopy of leaves, whichwill, by shading the ground, minimize the need for costly weed control and irrigation

(B) with the closer spacing of therows, corn plants will be forced to grow taller because of increasedcompetition for sunlight from neighboring corn plants高不高跟profit没有关系

(C) with the larger number ofplants growing per acre, more fertilizer will be required

(D) with the spacing between rowscut by half, the number of plants grown per acre will almost double

(E) with the closer spacing of therows, the acreage on which corn is planted will be utilized much moreintensively than it was before, requiring more frequent fallow years in whichcorn fields are left unplanted为什么D不行。。。D不是应该翻译为每acre 的植物数量翻倍嘛？又不是果实

sheryter

我觉得这道题很tricky, D很像正确答案。

个人觉得是数字上的问题:

原来利润是A, 现在有了machine是2A。

D选项： almost double < 2, 且Corn planted this closely will produce lower yields per plant。

所以 (2-x)*(A - y) < 2A , 所以无法满足。

只有靠杀虫剂非常贵了。。

saber0425

我觉得这道题很tricky, D很像正确答案。

个人觉得是数字上的问题:

原来利润是A, 现在有了machine是2A。

D选项： almost double < 2, 且Corn planted this closely will produce lower yields per plant。

所以 (2-x)*(A - y) < 2A , 所以无法满足。

只有靠杀虫剂非常贵了。。

-- by 会员 sheryter (2012/7/9 16:53:46)