虚拟预期用were

Percentage下降不代表人数下降

是问的england啊 看清楚问题 而且不要花太久

由viewed确定主句的主语！

E：that不引导定语从句

their share and its share没有识别出来 工作里邮件也经常这么写错

在书面语里if就是如果的意思 所以不能用来代替“whether”

A. revenue不受cost影响（不是profit）

定语从句难道不能做同位语吗？E是不是可以看作是同位语的平行？两者难道不都是修饰成分吗？

E 没看到SUPPLEMENT!!!!!!!!!

the real problems with choice a:
- 'the ratio of 42 times' is redundant; it'd be good enough just to say '42 times'. note that the word 'ratio' is not redundant in choices c-d, since it's being used as a modifier to make a logical connection.
- it doesn't say 42 times what. not only is that unacceptably vague, but it also breaks parallelism.

****，way of doing something 和 way to do都可以 谨记

MB和RDN不能是generations的代表，只能是actors的代表，所以要用whose ranks来指代清楚

本题assumption：只有被collar的母犀牛会被麻醉
weaken：如果工作人员会因为除了collar以外的其他原因去麻醉犀牛的话，那么collar和uncollar就不能作为判断生育率的理由了。因为其他uncollar 的母犀牛也可能因为其他原因被麻醉，无法判断两者谁被麻醉更多。

不是很理解a为什么错

his question is asking you to strengthen the conclusion that the discovery of leavend bread was causally related to the introduction of the non-toasted wheat. Your answer needs to make a definitive connection between those two events.
C - This answer perfectly connects the non-toasting with the leavening. Before, when wheat was toasted, the gluten was destroyed, preventing the bread from leavining. With the new, non-toasted wheat, the gluten is present and the leavening process can take place.

E. This option states that there isn't a common knowledgebase of species, which supports the conclusion that only TRAVELING artisans (those who pick up knowledge of species as they travel throughout Rome) could have created the mosaics

E选项的意思应该是：联邦对水权的为保留内含（条件），但在特别情况下言明。

B a decline in the use of coal might have caused a decrease in surface coal mining and thus an OVERALL decrease in reclamation costs, but that would not affect AVERAGE reclamation cost. Eliminate (B).

医院靠保险来补偿无偿治疗。
保险公司现在只付真实发生的医疗费用。
根据上面的信息，你认为几个选项里哪个是最准确的？
B，要是医院找不到其他方法来补偿无偿治疗，他们要么不再无偿治疗，要么自己承受损失。
CR：以前保险公司比实际发生的费用还多付点，医院拿多付的部分来补偿无偿治疗发生的成本。现在保险公司不肯多付了，医院要亏。