以下是引用我爱欧洲在2005-5-23 23:43:00的发言: 159.B项说Amino Acid包含在一种两组都会吃的蛋白质里,因此这个factor在两个组都出现,不能作为区别结果的原因。
159的B可以看出以上解释吗?
(B) The amino acid referred to in the conclusion is a component of all proteins, some of which must be consumed for adequate nutrition.
我的理解是: 结论中提到的氨基酸是所有蛋白质的一种成分, 一些蛋白质可以带来营养.
我的理解有误?
另外, 麻烦XDJM帮我看看OG对B的解释:
Choice B indicates that, outside of the experiment, both groups consume the amino acid. If relatively small quantities are involved, the conclusion is unaffected; otherwise it is weakened.
真的看不懂. 个人觉得B只是陈述了一下氨基酸的背景. 似乎和做实验无关, 所以根本无法理解"the conclusion is unaffected; otherwise it is weakened".
请大家帮忙看看!!
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