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求助:OG 11th 紫色 50

50. Crops can be traded on the futures market before they are harvestedIf a poor corn harvest is predictedprices of corn futures riseif a bountiful corn harvest is predictedprices of corn futures fallThis morning meteorologists are predicting much-needed rain for the corn-growing region starting tomorrowThereforesince adequate moisture is essential for the current crop's survivalprices of corn futures will fall sharply today

Which of the followingif truemost weakens the argument above?

(A)  Corn that does not receive adequate moisture during its critical pollination stage will not produce a bountiful harvest

(B)  Futures prices for corn have been fluctuating more dramatically this season than last season.

(C)  The rain that meteorologists predicted for tomorrow is expected to extend well beyond the corn-growing region

(D)  Agriculture experts announced today that a disease that has devastated some of the corn crop will spread widely before the end of the growing season

       (E)  Most people who trade in Com futures rarely take physical possession of the corn they trade
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答案是d, 你把答案记错了

TOP

是说期货的

TOP

呵呵,大家不要误会,选项E不是答案。

只是发现选项 A  自己解释不通!

If a poor corn harvest is predicted,prices of corn futures rise;

A.Corn (...) will not produce a bountiful harvest.==>price of corn will

rise.

自己觉得 A 和 D都可以理解为 Weaken!

请各位拍砖!

TOP

weaken是要weaken结论啊, A和结论的具体性"today"并无关系;

另A是说没有足够的moisture就没有好收成, 不能跳过moisture这个条件直推price

of corn will rise

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选择A中 确实无法得出 今年的harvest 的结果怎么样!

谢谢各位同学!

TOP

我个人到觉得关键是题目已经说了much-needed rain ,所以A就无关了,否则A是可

以weaken的啊

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A是一个statement,不是已经发生的或将要发生的事情,与今年没有关系

TOP

conclusion是:因为雨水好,所以价格下降。


A。在授粉季节没有好雨的话影响产量

B.未来的价格浮动比去年大----和原文没有关系

C雨水所致区域大于种植corn的区域

D有虫子会影响收货

E进行期货的人并不真正的进行交接(只是一个叙述,和文章无关)

其实只有AD会影响harvest,然而A更像是个support

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