[quote] lz 8.1可能是这个 求验证 Plankton generally thrive in areas of the ocean with sufficient concentrations of certain nitrogen compounds near the surface, where plankton live. Nevertheless, some areas, though rich in these nitrogen compounds, have few plankton. These areas have particularly low concentrations of iron, and oceanographers hypothesize that this shortage of iron prevents plankton from thriving. However, an experimental release of iron compounds into one such area failed to produce a thriving plankton population, even though local iron concentrations increased immediately.
Which of the following, if true, argues most strongly against concluding, on the basis of the information above, that the oceanographers' hypothesis is false?
(A)Not all of the nitrogen compounds that are sometimes found in relatively high concentrations in the oceans are nutrients for plankton. (B)Certain areas of the ocean support an abundance of plankton despite having particularly low concentrations of iron. (C)The release of the iron compounds did not increase the supply of nitrogen compounds in the area. (D)A few days after the iron compounds were released, ocean currents displaced the iron-rich water from the surface. (E)The iron compounds released into the area occur naturally in areas of the ocean where plankton thrive. weaken 选D
-- by 会员 臭子路 (2011/7/8 10:37:35) 谢谢shareing! 不过问题是不是换了？看逻辑JJ，这题的问题好像是solve this discrepancy 呀？待求证~
再补充一道语法，昨天整理东西的时候想起了～不过不知道大家还看得见不了～ 有一篇文献不能确定它的时间作者什么的，但是里面找到了一段话，这段话出自于某作者某某年的一个著作。因为在那个时期那个地方的人写东西有种习惯，就是引用自己以前的文章，所以推断这边文章的由那个作者写在那篇著作之后。 问题是which of the following can help to evaluate的感觉。我选的是要看那个时期的人是不是也喜欢引用别人的文章。 不过记的可能有点问题。推断似乎也只是说那篇文章写在那个著作之后。这样我选的应该就是错的了。 记不住了。。。。大家自己看题吧还是。。 -- by 会员 dawnie (2011/7/8 14:11:14)
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发表于 2011-7-8 11:14:10
