OG題.請幫幫忙(第一次pose題目)og-159,og-144,og-153

dorbear

欢迎欢迎！可以将题目完整贴出来吗，这样大家更好参与讨论，谢谢！

dorbear

[face=Verdana]#164 Useful protein drugs, such as insulin , must still be administered by the cumbersome procedure of injection under the skin. If proteins are taken orally, they are digested and can not reach their target cells. Certain nonprotein drugs , however, contain chemical bonds that are not broken  down by the digestive system . They can , then, be taken orally.

The statement s above most strongly support a claim that a research procedure that sucessfully accomplishes which of the following would be beneficial to users of protein drugs?
(A) Coating inslin with compounds that are broken down by target cells, whose chemical bonds are resistant to digestion.
(B) Converting into protein compounds, by procedures that work in lab.. the nonprotein drugs that resist digestion.
(C) Removing permianently from the digestive system any substances that digest proteins.
(D) Determining , in a systematic way, what enzymes and bacteria are present in the normal digestive system and whether they tend to be broken down within the body.
(E) Determining the amount of time each nonprotein drug takes to reach its target cells.
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这道题实际上是一个问题解决型，在文章中作者提到这种叫Protain Drugs由于会被消化道分解，不能到达目标细胞，因此只能注射，不能口服。题目要求找一个研究成果能有效解决这个问题。

（A)发现一种糖衣片，既包含这种药物成分，又不会中途被消化道分解，所以这项发现将能保证即使口服这种糖衣片，其中的药物成分到达目标细胞。[/face]

dorbear

[face=Verdana]#159 Half of the subjects in an experiment---- the experimental group ----consumed large quantities of a popular artificial sweetener. Afterward, this group showed lower cognitive ability than did the other half of the subjects--- the control group--- who did not consume the sweetener. The detrimental effects were attributed to an amino acid that is one of sweetener's prinicipal constituents.
Which of the following , if true, would best support the conclusion that some ingredient of the sweetener was responsible for the expenimental results?
(B) The amino acid referred to in the conclusion is a component of all protein , some of which must be consumed for adequate nutrition.-------可以解釋為何錯?
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看了一下；本题要找出这种Amino Acid是不是原因的支持，而不是说这种Amino Acid是如何造成的原因或怎样才能避免这种不良的效果。所以判断文章的论证重点和方向很重要。如果没有记错的话，这道题的答案因该是一个它因排除型的选项，即实验之前两组的认知能力基本没有区别。由此加强服用这种Amino Acid正是造成这种效果的原因。[/face]