E,since his running time at grade 5 is 501 seconds and his height would be 120 cm while at grade 2 it would be 65 cm ,which is 185% of the height at grade 5

名牌商家通过将价格差降到比五年前还要低，就可以吸引回来顾客。问削弱。
B：顾客已经很满意store brand的质量了，所以即使名牌降价，顾客也不会买，直接削弱。
D：说的是store brand由于广告费用低，所以有能力比name brand提供更低的价格。进一步分析：之前name brand顾客流失的原因是由于namebrand和storebrand价格差距太大，以至于即使namebrand质量更高，顾客也不愿意买了。那么现在价格差距减小了，我们却不能判断顾客对缩小之后的价格差的接受程度。①如果顾客认为价格差距已经小到多付一点点钱就可以获得很多很多的高质量的商品时，那顾客就会买name brand。 ②如果顾客认为缩小后的价格差还是没有达到自己的预期，自己更愿意花更少的钱买相对质量不那么高的产品，那么商家的措施还是没用。 所以，D没办法直接削弱。

A被Washington, D.C.后面的那个逗号搞晕了，想一句句子为啥要把主语和动词逗号隔开呢。原来是前面的一个同位语。
看题的时候还要更仔细。

请问A为什么不对？

这只是一道细节题，不要被生词唬住

头衔会阻碍上下级沟通，从这个层面上讲它是能达到目的的，第二个黑脸是strategy的一个副作用，所以B选项call into question the effectiveness of that strategy as a means of achieving that goal是错的

synthesize综合，refutation反驳。是用一个观点反驳另一个，显然没有调和两个论点

在商务术语中，"Top Line"为收入（Revenue/Sales），“Bottom Line”为净利润（Net Income/Profit/Earnings），两者分别为公司利润表的最顶一行和最底一行，故称之为top line和bottom line。

取非
E 大部分人都相信即兴演讲就是persuasive的，那么用即兴演讲去忽悠人的科学家就没办法去忽悠那些人了！
B most people 都能区分persuade的communication和not persuade的communication，她们能区分communication是怎么样的，但是政治学家还是有能力/技巧掩盖住，用一个即兴的演说去忽悠他们的，所以并不能削弱结论。

看选项单副并列就可以排除a c d，e没有谓语，88

频率直接影响了loss

were it to do so = if it were to do so

第一个选项会有两个so

回到最前面，基本的就是用gdp来衡量的

忽略了 a > 0, b > 0, and c > 0

前提：Since nicotine in cigarettes changes brain chemistry, perhaps thereby affecting mood, it is likely that smoking contributes to depression in teenagers.

结论：Those who began smoking within a month of the study's start were four times as likely to be depressed at the study's end than those who did not begin smoking.

请问老师，这个题只能一个一个加起来计算吗？有没有简便算法啊

generally overstated等同于 often overstated吗？generally 和 often 表达的意思不同吧？

"The average number of books per student was 2" means that total of 2*30=60 books were borrowed;
2+12+10=24 students borrowed total of 2*0+12*1+10*2=32 books;
So 60-32=28 books are left to distribute among 30-24=6 students, these 6 are "the rest who borrowed at least 3 books";

To maximize the number of books one student from above 6 could have borrowed we should minimize the number of books other 5 students from 6 could have borrowed. Minimum these 5 students could have borrowed is 3 books per student, so total number of books they could have borrowed is 5*3=15 books. So the 6th student could have borrowed is 28-15=13 books.

Answer: D.

Hope it's clear.

by contrast爱尔兰政府有更大的作用，在日本和印度虽然没有提及，但是这是一种隐形对比。考试中比较常见。谨记

C. an isolation that limited both cultural contact and exposure to European diseases = It limited but did not eliminate contact with other cultural groups.