ab,bc,cd表示的不是弧长，是直线长

1. Ron: "immune from" means free of exempt from (eg. immune from prosecution), whereas "immune to" means not susceptible (eg. immune to chicken pox). In this case, the ozone layer was considered not susceptible to human influence. Thus, "immune to" is idiomatically correct.
2.在we have now realized已经是现在完成，意味着在过去某个时间点之前我们都以为ozone是 immune from human influence，自然应该用过去完成时态。
3. it appeared后面加从句it blah blah是redundant，appear作为系动词，后面可以直接加形容词做表语。这样最为简洁清楚。

如果选了E选项反而说明the poll was inaccurate了，不符合题意

be subject to 经受遭受某件事情的主语应该是 coyote，而不是ability。
expand the range, 前文没有对应range不能用the

land values are increasing ≠ land values are high

as varied as =such as

Moreover, 100-percent-loyal buyers tend to be 【light buyers】 of the product or service.
【】和选项对应

unqualified: adj. 不合格的；无资格的；不胜任的；不受限制的；无条件的；绝对的
unqualifying: 不是个词

depend on A to do B 依靠A做B，保准A能做B

depend on A as B 把A作为B

陷入阅读迷区，文章第一段说的是A recent computer-modeling experiment，第三段说的是 data between 1970 and 1979，我就以为80年代已经不算recent了，所以和computer model没啥关系了.........

recycled Al/Al 与 recycled Glass/Glass 相比较，分母Al不变，而分母Glass大幅度减小，所以铝制品的percentage小于玻璃的

Given: B + V + G = 360.

(1) The number of books that the charity collected was 40 percent of the total number of books, videos, and board games that the charity collected --> B = 2/5*360 --> B = 144. Not sufficient.

(2) The number of books that charity collected was 66 2/3 percent of the total number of videos and board games that charity collected --> B = 2/3*(V + G) --> B = 2/3*(360 - B) --> B = 144. Not sufficient.

(1)+(2) We only know that B = 144 and B + V + G = 360 (V + G = 216) --> we cannot solve for V. Not sufficient.

(1) All of the cars that had antilock brakes also had automatic transmission，没说had automatic transmission的cars是否 had antilock brakes

（1）中可以让题干与（1）相减，但由于两条公式的右边都是小于零，所以不能得出w - y > 0。不成立。
（2）如果w大于x，则当w负数，x也是负数；w正数，x负数，且绝对值比w大。所以y一定是负数。当w为正数，w - y > 0；当w为负数，因为x的绝对值比w大，那y的绝对值肯定比x大，比w大，所以w - y > 0成立。

mark

注意B to convert its more than 2,000 trucks in the Los Angeles area that are powered by gasoline to

to convert its more than 2,000 trucks in the Los Angeles area that are powered by gasoline to

注意D some time in the past our ancestors suffered an event from which their numbers were greatly reduced
reduce的发出动作是event，所以用定语从句。from which只能暗含during，并不意味着这个event是动作发出主体。

D选项：主句的主语为一个从句，而一句话当中的核心词是谓语动词，所以这个选项表达出的字面意思为“适应”这个动作 被 问题阻碍了，但逻辑上被供应商问题阻碍的是AQ部门，不能是“适应管理团队”这件事。

D\E
agree的宾语核心词此时为“unlikelihood”，即“不可能性”，之后是它的同位语从句。选项的字面核心意思就变为“分析学家同意一个不可能性”。但逻辑上来说，分析学家应该同意“一件事”，而不是一个很抽象的东西；“不可能性”是无法被同意的

我要疯了，什么时候能解脱