除了个别情况，好像还有很多时候’s也适用于无生命的情况，比如gmat里面有company‘s research的用法出现在SC里面，所以最好还是不要把’s不能适用于无生命情况当做一个绝对判断标准吧，不然容易错失正确选项

题目说的是possible, 不是must be true
D：假设1990年的中雨的降水量全都是达到极限值2 inches，1910年中雨的降水量全都达到极限值1 inche，那么D的意思就是2*1990年天数>2*1*1910年天数，但是题目说的是1990年的天数是小于1910年的天数的，所以肯定不成立
A：大雨的日子更少，但是大雨的降水量可能是巨多的，因此possible

D changes the meaning by using although. This is saying that despite the fact that they can afford household appliances the labor is demanding, instead of saying whether or not they can afford the appliances the labor is demanding. Although shows that they definitely can, whereas even if shows that hypothetically can.

IMO, the more substantive route to solve this would be to sift whether ' would find' or 'would have found' is correct. There is no point in saying that the grandparents would find them a miracle in the coming future days. We must attribute their perception with what they would have felt in their on their own contemporaneous times.

Even if - means whether or not and has to do with the conditions that may apply.
1. Even if I had time, I wouldn't watch that programme.
2. Even if Mark told the truth, I wouldn't believe him.

Even though - Even though means despite the fact that and is a more emphatic version of though and although. It is primarily concesive
1. Even though I had time, I didn't watch that programme
2. Even though Mark told the truth, I didn't believe him.

The differences can be appreciated in this sentence
1. I'm going out, even if it rains
2. I'm going out, even though it's going to rain
We do not know whether it will rain or not in (1) so we use even if
In (2) we know that it is going to rain but we are going out anyway

为什么B选项中的with不能直接修饰stars?,with 不是就近修饰吗？

有重力补偿，就没有negative gravity anomalies,
题目说的有最明显的negative gravity anomalies的话，说明就没有重力补偿，所以要找到没有重力补偿是什么情况-->现在没有重力补偿了，但是在early in lunar history是有的

看清是shipping 还是processing！！！审题

根据坐标中点公式直接求出CD中点为(1/2,1/2)
这题想的太复杂了，不必纠结a,b具体取值是否大于1！

（1）k的十位数也可能是4, e.g.140
（2）个位>5，必须进位，所以十位为3

题目关键点在于at least 100，具体数字不确定，（1）not sufficient

（2）有两个方法，加和减都行，1@0也是两个运算都行，这题有毒

这题题意很难理解啊，我还以为是下一层4个橙子=上一层1个橙子。
原来是放在四个橘子中间的意思...

five different integers.

我这题把x^4看成x^2了....
假设y=0，x最大值为根号10>3

只有5人能得分，分数为5,4,3,2,1，每组不超过6分
分别为
5+1
4+2
3

老师我看不懂b项里为什么末尾是独立主格结构。

REMEMBER positive integers不包括0

所以D选项 the energy后面的from nuclear power in Germany只是一个状语，无法修饰the energy吗？

想請教一下第9題的(A)
題目是說政府認為取消課可以降低犯罪率，而作者持反對意見，所以就是取消課無法降低犯罪率
而(A)的原意是取消課無法降低犯罪率，所以不取非是support，而取非變成取消課可以降低犯罪率，那變成weaken
雖然這題我是選(C)，但(A)的方向也都是正確的吧？