两道短文阅读题不明白，求解！！！

lizlee0420UID: 3163467

no题8-2的短文，感觉看明白了，可是做题就是错了，不明白选项的区别。google后也木有得到sulotion。请好心的同学给解答一下吧
The social sciences are less likely than other intellectual enterprises to get credit for their accomplishments. Arguably, this is so because the theories and conceptual constructs of the social sciences are especially accessible: human intelligence apprehends truths about human affairs with particular facility
. And the discoveries of the social sciences, once isolated and labeled, are quickly absorbed into conventional wisdom, whereupon they lose their distinctiveness as scientific advances.
This underappreciation of the social sciences contrasts oddly with what many see as their overutilization. Game theory is pressed into service in studies of shifting international alliances. Evaluation research is called upon to demonstrate successes or failures of social programs. Models from economics and demography become the definitive tools for examining the financial base of social security. Yet this rush into practical applications is itself quite understandable: public policy must continually be made, and policymakers rightly feel that even tentative findings and untested theories are better guides to decision-making than no findings and no theories at all.
19. It can be inferred from the passage that, when speaking of the “overutilization” (line 11) of the social sciences, the author is referring to the
(A) premature practical application of social science advances
(B) habitual reliance on the social sciences even where common sense would serve equally well
(C) practice of bringing a greater variety of social science disciplines to bear on a problem than the nature of the problem warrants
(D) use of social science constructs by people who do not fully understand them
(E) tendency on the part of social scientists to recast everyday truths in social science jargon
这一题选的是A，吴中东上的解释是根据Yet this rush into practical applications is itself quite understandable这句话，但是我是根据下一句话理解的：public policy must continually be made, and policymakers rightly feel that even tentative findings and untested theories are better guides to decision-making than no findings and no theories at all.为什么会定位错呢？根据理解明明就是这句啊
20. The author confronts the claim that the social sciences are being overutilized with
(A) proof that overextensions of social science results are self-correcting
(B) evidence that some public policy is made without any recourse to social science findings or theories
(C) a long list of social science applications that are perfectly appropriate and extremely fruitful
(D) the argument that overutilization is by and large the exception rather than the rule
(E) the observation that this practice represents the lesser of two evils under existing circumstances
答案是E，我选的A，正好定位的两句话和上一题颠倒。A哪里错了啊？

求详细解答！！！

Andrew_MaoUID: 3372098

我正好也卡在这道题上
A的self-correcting是自我修正的意思，和understandable没有关系
E的意思就是最后一句话，用tentative的理论总比没有理论基础好，two evil就是指用tentative的理论和没有理论基础，然后文中的意思就是选个不那么不好的，lesser evil

UluUID: 3091290

E的意思就是：两权相较取其轻