do在比较级中是指代前句整个动词的一个缩写，跟指代名词时的it类似。

C. did应该为did so (曼哈顿讲的)

Quote:
C. outline the major questions in a scientific discipline

We can eliminate (C) because the author didn't write the passage to outline major questions. If this were true, we'd see more of an outline-like breakdown of more than one question. Instead, we have a deep dive into a single question ("How do these two groups define behavioral?") and a single example (Shaker) used to address that question.

没有 future likely。 sb is likely to xx。而不是 sb will be likely to do

likelihood that sb will 。。。 makes sense

Manhatten 的 staff如此说：
for those of you who are not native speakers of english - the best approach to problems such as this one is:
* note the differences in usage between the formal and informal
- e.g., "rate how likely" vs. "rate the likelihood that..."
* remember what these differences look like, so that you can make similar distinctions in the future.

that在不在都ok，不是必须不在。

if。。。were。。。，。。。would。。。。

哎呀，看尾不看头。。。。罪过罪过

这个题是经济学，讲的是稀缺性，学生老师有一定比例，学生多了，作者就觉得emmm，找个教教师的工作会很容易。BUT，如果大家都像你这么想，并且人家都是有教师资格证的，那么找个礁石工作还会容易么？no！

(1) The cable company installed three cable outlets in the Horace family home. Total cost=$30+$20*3. Sufficient.

(2) The amount that the cable company charged the Horace family for installing cable television in their home was equivalent to an average (arithmetic mean) charge of the $30 per cable outlet installed. Say the number of outlets is x, then Total cost=$30+$20*x and the average is ($30+$20*x)/x --> ($30+$20*x)/x=30. We can solve for x. Sufficient.

10^x - 74 --> last 2 digits are always 2, 6.

10^2 - 74 = 26

10^3 - 74 = 926

10^4 - 74 = 9926 and so on....

If x > 1,
the sum of the digits --> (x-2) * 9 + 2 + 6. hence, (50-2) * 9 + 8 --> 440.

此段话想说“让它（火蚁，单数）更容易扩散。
A B C 代词问题： A C用了them，不可指代单数的火蚁，便成了天敌们的代词，明显不符语义。
B出现了两个it，分别代表不同含义，指代混乱，非优选。
D完美项
E畸形

有that就是identify两个递进的发现：an asteroid & 一个if句子
没有that就是an asteroid & 一个句子并列，这不可能
ac的时态用法都是对的

简单的句意不要大意
d歧义，对比的是energy produced in France to that produced in Germany, 顺序颠倒造成句意变化：energy produced in France comes from nuclear power in Germany
whereas这类subordinator两clauses结构很宽松，不需要平行，主被动态也不需要一致

倍数关系：A is twice B, 不用A is twice of B
A is sold for 3 times the price THAT sb charges for B 宾语从句直接解释倍数关系
A is sold for 3 times the price OF WHAT sb charges for B 所有格

审题Female rhinoceroses that have been frequently recollared have significantly lower fertility rates than uncollared females.

类比甲：曾经市中心经营不佳的店都又回弹了，乙：现在因郊区打折店竞争经营不佳的市中心店要倒闭，回不来了。
找类比失败原因：1类比对象两者本质不同，2他因
a乙和甲性质不同，乙旗舰店：imply之前回弹的甲是靠乙回弹的
c代替甲的都和甲一个性质：代替乙的也可以和乙一个性质，郊区有打折店城里也可以接着有打折店

对比ab，为什么我就是看不明白，这明明都是在拿spending和rate比啊。。。

However, despite antagonism between bourgeois feminists and socialist feminists, the two movements shared certain underlying beliefs.
however，despite这种衔接词，表示反向的核心态度
c还错在solving a political problem，女权运动的两派，原文没提到过要解决的问题

e还错在时态，参考曼哈顿关于if的5种时态用法
if 虚拟，then would do
if had done，then would have done