Critical Reasoning

[Critical Reasoning] 试题详情

Sunflowers growing in pots were placed, with their roots submerged, in the pond contaminated with radioactive elements.  The sunflowers kept growing; in the process, they absorbed radioactive elements.  Within twelve days, 85 percent of the radioactive elements were removed from the water, which is no less than can be accomplished with the much more expensive conventional filtration techniques.  Scientists therefore propose using sunflowers for decontamination wherever there are radioactively contaminated ponds.
 
Which of the following, if true, points to a limitation on the applicability of the proposed method of decontamination?

Options:

Some plants other than sunflowers can also remove radioactive elements from water.
The water in many ponds contaminated with radioactive elements is so cold that it would kill sunflowers whose roots were submerged in it.
Sunflowers that grow with their roots submerged in water grow less well than sunflowers growing under optimal conditions on dry land.
Only species of sunflowers with large leaves can have their roots submerged in water and still keep growing.
In ponds in which the circulation of the water is artificially increased, sunflowers absorb radioactive elements far faster than they do in other ponds.

Correct:

B

Critical Reasoning

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[点此查看答疑][GWD]Critical Reasoning

留下B、D选项。排除B的是因为原文第一句已经叙述sunflower怎么在ponds中起作用的过程,由此得出这个过程一定成立,那么B说ponds太冷会导致这个过程不能继续是在抬杠。 REVIEW的时候发现可能是D被我发散了,究竟哪个品种对消除辐射有效和问题说的实施的限制无关。B是不是算长得像正确选项?因为它讨论的是能不能。
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[点此查看答疑][GWD]Critical Reasoning

E选项的错答类型是什么?
0评分
98浏览

[点此查看答疑][GWD]Critical Reasoning

留下B、D选项。排除B的是因为原文第一句已经叙述sunflower怎么在ponds中起作用的过程,由此得出这个过程一定成立,那么B说ponds太冷会导致这个过程不能继续是在抬杠。 REVIEW的时候发现可能是D被我发散了,究竟哪个品种对消除辐射有效和问题说的实施的限制无关。B是不是算长得像正确选项?因为它讨论的是能不能。
0评分
68浏览

[点此查看答疑][GWD]Critical Reasoning

E选项的错答类型是什么?

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