A选项不能确定是不是在授粉期，所以不一定削弱

argument 观点，争论，论述 都有可能

这个题是不是答案错了？不应该选2^3嘛??

cubic！！立方，注意！！

https://gmatclub.com/forum/prices-at-the-producer-level-are-only-1-3-percent-higher-now-than-a-206127.html

看的太飘了，这是归纳题。

1 prevention of ..from 冗长复杂且不准确
2preventive是预防药，医疗保险怎么能being 呢。
3语句没有问题。
4 5表达不清准。而且 to 不如at， aim to 是打算决定目的是干什么。 aim at是针对。 两者有些微区别，在这里aim at更合适。

一个yet让我迷失了

A signal can be made using 3 flags. We have total of 4 , so 3 can be chosen out of 4 in 4C3 = 4C1 = 4 ways

The three flags can be arranged in 3 ! ways to make a unique combination. Hence 4 * 3! = 24 ways.

The 3 small rectangles have the same dimensions --> let the shorter sides of small rectangles be xx and longer side be yy, so KN=LM=yKN=LM=y and MN=x+yMN=x+y. Also two smaller sides add up to bigger side, so x+x=2x=yx+x=2x=y (LM, or KN, which is yy equal to the sum of 2 shorter sides). KN/MN=y/x+y=2x/x+2x=2/3 Sufficient.

这个老师的讲解真的是废
yet this evidence was perceived as substantially irrelevant: historians saw political history as the general framework for historical writing.
irrelevant这里的意思是“不重要的” 也就是说这些证据被认为不重要的（和D中ignored）表达的意思一样
（如何判断irrelevant该翻译成“不相关的”还是“不重要的”？）
看冒号的解释historians saw political history as the general framework for historical writing.
历史家把political history看成一般的framework 也就是说他们没有重视这个political history
！！！relevance也有一个意思叫“意义” （Gmat还有一题考到这个意思） 切记啊

介词短语作状语的时候不是没有主语的吗

d的问题是for retirees 这个是为了retirees的意思 作状语 这是有问题的 但e不懂哪里错啊

D的解释需要mark

0.40F + 0.5 (1-F) = 0.42
F = 4/5

1. so... as to... 和 so... that...
一般说起来如果so...that...可以选，坚决不选so... as to...，so that在gmat的优先级就是比so as to高，这OG里也反复强调了...
2.so as to/ so that / enough to A. so…as to 的结构表达了一种目的，而so…that 表达了consequence，语义上是有区别的，这里描述的是自然现象，用表目的的as to不是太合适——充满水以为了获得液体的特性 vs 充满水导致其获得了液体的特性，明显后者比较好；
3.so...as to...用于主语和to后面的动作的发出者一致时，而so...that...中，主语与that之后的主语不需要一致。

Question: is J>M?

(1) Mary owns more than 500 shares of the company's stock --> M>500. Clearly insufficient, since no info about J.

(2) --> J=2M-400 --> substitute J in the question --> question becomes: "is 2M-400>M?" --> "is M>400?" We don't know that. Not sufficient.

(1)+(2) From (2) the question became "is M>400?" and (1) says that M>500, thus the answer to the question is YES. Sufficient.

We are asked to find the percentage of females in employed people.

Total employed people 64%, out of which 48 are employed males, hence 16% are employed females.

(employed females)/(total employed people)=16/64=1/4=25%

(1) In the survey 36% of men and 50% of women said that they consider engaging in research activity an essential goal:

m+w=1400m+w=1400 and 1400∗0.42=0.36∗m+0.5∗w1400∗0.42=0.36∗m+0.5∗w.

(2) In the survey 288 men said that they consider engaging in research activity an essential goal"

From this we can calculate only that 1400∗0.42−288=3001400∗0.42−288=300 women consider engaging in research activity an essential goal. No other info. Not sufficient.

没有影响≠带来净收入。