求助 GWD-1-31~~~~~~~~~~~~~~~~~~~

fannybeibei · 发表于 2010-7-16 21:07:07

Which of the following most logically completes the argument below?
Davison River farmers are currently deciding between planting winter wheat this fall or spring wheat next spring. Winter wheat and spring wheat are usually about equally profitable. Because of new government restrictions on the use of Davison River water for irrigation, per acre yields for winter wheat, though not for spring wheat, would be much lower than average. Therefore, planting spring wheat will be more profitable than planting winter wheat, since_______.
A. the smaller-than-average size of a winter wheat harvest this year would not be compensated for by higher winter wheat prices
B. new crops of spring wheat must be planted earlier than the time at which standing crops of winter wheat are ready to be harvested
C. the spring wheat that farmers in the Davison River region plant is well adapted to the soil of the region
D. spring wheat has uses that are different from those of winter wheat
E. planting spring wheat is more profitable than planting certain other crops, such as rye

选A
关于B我还是不懂。原文意思：冬麦和春麦收益常差不多。新政府的规定使冬麦产量比春麦低。所以种春麦收益好点。那么B，也是一个加强阿，所以要种春小麦，B取非,为两者可以同时种植，不就否定结论啦。

fannybeibei · 发表于 2010-7-17 19:41:40

upup

阿尔法柔笼 · 发表于 2010-7-17 21:57:22

题目的意思就如你所说的，结论是种春麦比冬麦更与利润，可以两者同时种植只能说明这块地的收益更多，但是种冬麦还是比春麦收益小，A选项说说明了减小的冬麦产量不能被因为减产而提升的冬麦价格所补偿，那就说明了冬麦的收益肯定比春麦要低，这个是冬麦和春麦两个之间收益的比较。

fannybeibei · 发表于 2010-7-17 22:10:25

哦，谢谢啦～～～我懂了～～～

求助 GWD-1-31~~~~~~~~~~~~~~~~~~~

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