看清楚问题，不脑补

vacant 空置， a new store has opened.
重点在不会空置因为新店会继续开张。
没读懂题

call into question 对。。表示怀疑
the second identified the content of the conclusion.

z=1，x=0.5，y=-0.5，怎么满足条件1啊？1 > 0.5-0.5+1?

仔细审题，问“是不是”，有可能是判断题：
1. P满足，“可以”即是唯一解；
2. P不满足

条件1、2各自独立，各自看是否“可以”

“ since a concurrent sharp decline in populations of seals and sea lions is believed to have been caused by disease”，这句的concurrent是关键，海豹和海狮的下降和otter的下降是同时发生的，所以给A选项创造了可能。

只要有144的因子就可以了，不一定可以被3整除

审题，问的是多少件不是一件多少钱

One kilogram of a certain coffee 说明了x+y=1，审题啊~~

Generally, an as-clause must serve to modify an ACTION.
It cannot serve to modify a noun or noun phrase.

although 后面必须接一个句子：但是despite后面可以是短语。Despite and although are very close in meaning. However, despite is a preposition


and needs to be followed by a noun or noun phrase, while although is a conjunction and should be followed by a finite clause.？

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；

不知道卖了多少个啊啊啊啊
revenue=price*number啊啊啊啊啊啊
怎么能忘了呢............

whereas is used to show a contrast between two thing different. despite of is used to say about illogic condition.

自己是一个conclusion同时自己又去support主要的另一个conclusion

基于什么假设，，d是陈述总结，与推理无关。。重点在推理，假设。

重点surviving sea otters 幸存的水獭。。。e选项重复，因为已经确认了seals数量下降了（文中既定事实，无需纠结其原因，因为对结果无影响），无需说明他下降的原因是什么。问题主旨问的是水獭下降的原因

rationality 合理性 viability 可行性

viability 可行性不是合理性

首句就说了Many people suffer an allergic reaction ，结尾句without risking an allergic reaction to sulfites，，，重点说这种过敏物质，而无关其他，d选项混淆。应该focus在这种过敏物质。