请教,分享一道真题

ohayo

Macrophages are cells that play a role in the response of the immune system of mice and other mammals to invasive organisms such as bacteria.     Unlike other mice, mice that are genetically incapable of making these particular cells do not show elevated levels of nitrates when infected with bacteria.
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The statements above, if true, provide the most support for which of the following conclusions?



1     Mice that show elevated levels of nitrates can easily fight off most types of bacterial infections.
2     In mice, macrophages play a role in the production of nitrates or inhibit a process by which nitrates are broken down or otherwise eliminated.



which one is better ? why ?

snow_mountain

感觉好像2好一点。1有点像原命题的否命题。应该不一定对。而且感觉easily 和most types 都是原文推导不出来的。


继续讨论。

jnlvo

我选2

weiyu

I choose 2. It provides an explanation why the N level high within species with the ability to produce M.fficeffice" />

delldell

2 is definitely better

ohayo

我也人为B好, 因为B是从第二句中直接得出的. 而第一句是逆否, 不一定对.

cranberry

文章的逻辑是 小噬细胞     在免疫系统杀菌时有用 但没这个细胞的，在细菌感染时，没有什么东东升高的反应，可见有这个东东的时候，一定有这个细胞。觉得两个都不是很直接，但1明显不好，文章中没有建立这个逻辑关系。