文章：small animals, plants, and insects disappeared, presumably not all through human consumption。 并不都是
B：Paleoindians made use of the small animals, plants, and insects that became extinct 是人的使用导致的，削弱
文章： widespread climatic change did indeed occur at the end of the Pleistocene 发生在end
C：climatic change occurred not only at the end of the Pleistocene era but also in previous and subsequent eras。 除了end，在之前也发生了，以及其他地区。 并没有削弱，反倒是一种加强了
1、主干是the direction...was determined by collisions...；
2、定语从句中的主语是the earth and the other solid planets,谓语动词用复数
3、determine本身就含有as a result的意思 所以两个加起来用语义重复 而且wordy，且这里需要用表原因的表达。
Granted, Switzerland and the United States diverged in the degree to which the expansion of industry coincided with the degree of urbanization
Granted理所当然的；diverged不同于；S和USA在工业化和城镇化程度不同
我觉得定位句应该在这里“In addition, even when a single gene is found to control a behavior, researchers in different fields do not necessarily agree that it is a "behavioral gene." 这就说明了N和E的观点应该是不一样的。所以E认为它不是BE，那么N就持不同态度。BCD都蛮好排除的，这个E的确做题的时候迷惑了我（大意了，看到nervous system就选了orz但其实根本推不出来，没有更多的信息了）
First, the focus on positional rank does not recognize the variation in length of service that may exist in top executive posts across companies／Responding to these limitations, Bergh conducted a study of executive retention and acquisition outcome that focused on the organizational tenure of retained company top executives
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初中学过一个基本的语法点，即，只有there be句型，没有there have或者there do的句型。