4.14 放狗攒人品~

橙世界

谢谢楼主

woshij1

坎坎坷坷

ccmyway

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历历晴川

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Anthea_

thank you!!!

m1a2i3l

啥？？？？？看看

michelle_nn

谢谢楼主

chuhaimo

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ekgnos

GWD-10-Q40
Insect infestations in certain cotton-growing regions of the world have caused dramatic increase in the price of cotton on the world market. By contrast, the price of soybeans has long remained stable. Knowing that cotton plants mature quickly, many soybean growers in Ortovia plan to cease growing soybeans and being raising cotton instead, thereby taking advantage of the high price of cotton to increase their income significantly, at least over the next several years.
Which of the following, if true, most seriously weakens the plan’s chances for success?
A.        The cost of raising soybeans has increased significantly over the past several year and is expected to continue to climb.
B.        Tests of a newly developed, inexpensive pesticide have shown it to be both environmentally safe and effective against the insects that have infested cotton crops.
C.        In the past several years, there has been no sharp increase in the demand for cotton and for goods made out of cotton.
D.        Few consumers would be willing to pay significantly higher prices for cotton goods than they are now paying.
E.        The species of insect that has infested cotton plants has never been known to attack soybean plants.

楼主做的cotton应该是这个吧？

brfmzbjz

zxk198451 发表于 2014-4-15 09:32
IR那题答案就是4-5 中间那个点是成本最大产生的时间点（非最小） 题目就是问 以下哪两个小时内产生的成本最 ...

谢谢 我改过来了