B. Jamal's response indicates that our prehistoric ancestors were far more active than we are. This suggests not that Sasha is incorrect in her statement, but that her conclusion would benefit from this qualification: a diet high in animal protein and fat is healthy when one engages in intense physical activity at a level that is higher than what is normal for modern human beings. Jamal is providing new pieces of Information which Sasha is missing.
If Comput-o-Mart's customers require only basic computing and Comput-o-Mart sells only advanced computers, then it follows that Comput-o-Mart's customers are likely to pay for computing power that they do not need.
A & B& E are incorrect because "their" is referring to societies but that is illogical because it is people in the societies and not the soiciety itself that can have blood pressure.
he normally preferred form would be "societies in which..."
BUT,
in this sentence, if you write that, then you have
"...IN societies IN which..."
...which is bad.
A.&E-This choice lack parallelism and is unidiomatic (more for X rather than for Y is incorrect). The correct comparison is more for X than for Y.
B&D.-By eliminating the "for" prior to "the dollar bill," This choice creates an ambiguity: Is the dollar coin being used more as a substitute for four quarter than for the dollar bill, or is the dollar coin being used more than the dollar bill as a substitute for four quarters?
与题目无关，就是想总结一下
prefer A to B - 比起A更喜欢B
prefer A over B - 喜欢A也喜欢B但程度上更喜欢A
prefer to do A rather than do B - 宁可做A也不做B
prefer to do A than to do B - 宁可做A也不做B
因为what指代那个东西，其是单数还是复数本身是不清楚的，所以通常指单数。而主宾单复数不一致时谓语动词跟主语走，所以即便宾语是复数，what引导的主语从句谓语动词也可以是单数。参考句子：The only thing my father left me was a few books=What my father left me was a few books. 这里也可以变成The things my father left me were a few books=What my father left me were a few books.
The outdoor advertising spokesperson responds to the city resident by citing an objective test that shows the factual claims of the resident to be false.
when-following a dispute between the House and the Senate over which chamber should enjoy primacy in Indian affairs-Congress abolished the making of treaties with Native American tribes.
shortly after Lone Wolf, the federal government totally abandoned negotiation and execution of formal written agreements with Indian tribes as a prerequisite for the implementation of federal Indian policy. Many commentators believe that this change had already occurred in 1871
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创造了新的consciousness----改变了一些东西才能创造新的