A. red-winged birds先到，会把rice都吃完，所以其他的migratory birds就不会被毒死
C. 注意，说的是birds native to province，无关

我竟然看成了y是40-60的一个数，没有一个是答案

为什么A中的they不能指代experts呢

D:Like in可以省略like sth(比较对象）in，但是这个sth只能是前面的Thai crafts了，相当于they，而此处应该用those。

Only one有歧义。
可以翻译为
尽管这些理论brilliant，但是GH只认可其中一个
Or
尽管这些理论brilliant，但是只有GH一个人认可了他们

A. they指代不明，若指代ancient Anasazi则语意奇怪
B. they指代不明，若指代ancient Anasazi则语意奇怪
C. 事实上应该是现在的人们把这个植物叫做spinach，而这个主语应该弱化，故被动形态更好
D. and错误
E. it多余

patterns and causes固定用法，故只有A正确
另外B主谓不一致：a reasonably clear picture (of the patterns of ocean currents and their causes) have emerged. 错误，”have“应该改成“has”

我想选B的同学并不是像解析说的那样没注意到主谓一致吧………………很明显把picture和causes当成并行主语了啊，可是解析没有回答为什么不能这么看

12月 Josh

B. 主谓不一致，排除
C. those 代指metabolisms，与‘s重叠，排除

the rate of mainstream American businesses failing is 50%.
但不能说：
the rate of mainstream American businesses failing is half.

B. ”question the effectiveness of that strategy as a means of achieving that goal.“错误，并不是质疑公司选择该战略所要达成的目标的有效性，只是提出了一个副作用，目标仍是正确的
C. 质疑公司想要避免的这个problem (inhibit communication up and down the corporate hierarchy) 的重要性，错误
D. 完全错误
E. 并不是想provide a justification

居住在一个上层的空间里，在这个空间中，人们的天就是他的地板，并且这个人有......的能力
who...... and who......并列关系

”Clearly price promotions are generally run at a loss, otherwise there would be more of them.“
bottom line：利润表最后一行，即“利润”
作者通过什么证据来证明对利润有影响？答案是B

AB. 都是提出这个怀疑
C. 与theory无关
D. 解释了第一段最后的疑问
E. 是hot rock rise “within the mantle”并且使Africa上升，而不是hot rock 上升到mantle的上部

some things wrong with c:
* the placement of 'on earth' is just as problematic as in choice a (again, the sentence seems to be saying that residents of other planets disagree with us).
* 'as seen in the rings...' is a modifier that must be placed next to the thing that it modifies, which is 'the rate at which trees grow'. the way choice c is currently written, it says that indications of sunspot cycles can be seen directly in the rings - and it also implies that sunspot cycles (instead of trees) have rings!

be able to/have the ability to
be capable of

A. 这说明了fund-raisers were no better than those of other universities，故正确
B. 老donators捐得更多了，这是在说fundraisers的工作做得好，weaken
C. 原文中说contact的donator中，成功率过高因为接触老的donators。而老donators主动上门without any contact，这实际上weaken了argument
D. weaken
E. weaken

A. having用法不好，而且NASA是想发现这些痕迹是否”还“存在，而不是想发现这些痕迹是否“可以”存在
B. whether ......can those traces语序错误
C. 正确

A. kinship比property rights更加重要
B. 没有说高学历更加倾向引进新技术的原因是The ability to evaluate the wider economic ramifications
C. 并未提及isolated communities对引进新技术的影响
D. ”but availability of uncultivated land reduced the incentive to employ the productivity-enhancing technologies. “
E. “longer residence correlated with more adoption”，说反了