D. chance event只是灭绝的一种可能性原因，并且是建立在数量小的基础上的，原文没有直接说两栖动物的灭绝就是有可能是因为chance event导致的
E. 显然在文中直接提到，比起D选项更合理

第二段开头：Frazier and Mosteller propose ... 证明是对于改进方法的提议，而非how such trials are likely to change

distinguish their own species from xxx，根据意思可以理解为 区分它们自己和其他，这个owm species，并不是它们的什么，就是它们自己；排除ABD；
C-in being able to 很wordy 直接说in distinguishing就好了；排除C；

另外 that taste the hydrocarbons on prospective mates 作为修饰成分 修饰 flies，可以看出assist flies in doing sth 这个结构。

The effect on global warming of ocean white caps are，主谓不一致，排除AB；
D. not yet having been incorporated 错误修饰前面的 That 从句，排除；
E.they 无指代，不知道是谁；

*C中的that 跳跃修饰 the many aspects

数字之间的比较用greater

根据前面 not larger than 可以选出平行结构-ABC；A明显不对，排除；
剩下BC，C的which指代前面的pebbles，这个小圆石无法burn up·····排除，或者直接看前面句子成分 when tiny flecks of celestial detritus 没有谓语，后面肯定是直接接一个谓语，可选B。

share the view指的是认同该观点，不是被别人看到，答案翻译有问题

Buel and Buel's biography of Mary Fish (1736–1818) makes little effort to place her story in the context of recent historiography on women. Lebsock, meanwhile, attempts not only to write the history of women in one southern community, but also to redirect two decades of historiographical debate as to whether women gained or lost status in the nineteenth century as compared with the eighteenth century.
Buel和Buel的玛丽-菲什（1736-1818）传记几乎没有努力将她的故事放在近代妇女史学的背景中。同时，莱布索克不仅试图书写一个南方社区的妇女史，而且试图重新引导20年来的历史学辩论，即与18世纪相比，妇女在19世纪的地位是获得还是失去。
所以答案是D，讨论了更宏观的史学问题

ABC都很好排除，剩下DE。
D. an event that caused plant and animal extinctions, and it marks 这个it 我犹豫了很久，感觉像是an event；但回过头看其实it也可以指代 an asteroid；这就会造成指代不清的问题；
（遇到犹豫项一定要带回去看三次····提醒自己）
·····

从句子结构
A pair of architects in Britain, who...., designed a number of structures, including a bridge....
判断AB都会造成语法错误，排除；

build 和 to build 差别都不大（感觉太细了），主要是后面是否跟一个非限定性定语从句which的区别：如果是选DE 就会变成 a bridge, which shows how their idea would work. 只有这座桥才能展示他们的idea
但实际上是他们做了a number of structures to show·····（我也翻船了，太讨厌这种要慢慢品的题目····

从选项含义可以判断是women were more likely to work shifts 。。。differed from their husbands's 是shift之间做比较；排除ACE；
B. for married women whose children were under eighteen, 根据题目含义 应该是女性（18岁以上和以下）的作比较，而不是他们的孩子，排除B；
剩下D。

主谓一致可以排除AB；
剩下CDE，CD都存在就近修饰错误的问题。直接选E

immune to； immune from，前者是对···免疫；后者是免除于····；排除AB；
as being immune to 这种说法太wordy了，GMAT要求语言简练，直接排除C；类似的题目还有很多；

剩下DE；
seem，appear，look，feel，smell，sound，taste是系动词，后面可以直接跟形容词；D很简洁又正确；

A.没有主语，排除；
B.that is 不懂为啥要隔开···；
C.come from 应该是comes；
E.it和they都指代不明确，另外即便是it指代前面的the bony house of the brain，也很奇怪···这东西是from studies？？？

consequently后面不是材料的“果”

rs + r=r(s+1)-->odd, then r and S+1 both are odd. then S is even.

C

“我读懂了！”——“b竟然跟我预判的一样！”——“我 可 太 聪 明 了”

AB很好排除，这种解释性的一般都用that从句。
E，错到离谱，摘自ron
choice (e) is TOTALLY wrong. if you can't kill choice (e) quickly, you should read through a large number of correct answers to SC questions in the official guides, just for the purpose of internalizing the writing style of the correct answers.
i can't overestimate the importance of becoming comfortable with the writing style of the gmat. in the same way you can classify language as 'shakespearean' or 'faulkner-esque' at a glance, you can also classify language as to whether you might see it on the gmat. once you achieve a certain degree of this familiarity, choice (e) and its ilk will begin to look ridiculous.

the formal reasons why choice (e) is wrong: 1, it uses the passive voice for no good reason whatsoever, and, 2, more importantly, it says only that state laws were being violated; it doesn't at all indicate the crucial fact that the ban violated the state laws. that's baaaaaadd bad bad.

剩下CD，法律的属性一般都用现在分词，避免了「过去/未来」之类的允许问题。