r和s没有条件说是整数，所以条件1无法确定个数。有整数和小数的情况

正确答案不会让你有模棱两可的感觉的 一定要仔细去读每一个选项 且确保自己读懂了题目知道作者想要什么

注意去和uncertainty对应！！！没有仔细看选项！！大忌！！选项有的时候很迷惑人的！！！

because of+noun（一定是名词性质的noun 有的时候v-ing虽然是动名词但是还是表示的动词含义）

* we laughed all day because of tony walking into the girls' bathroom --> incorrect, because the verb (walking into the bathroom) is the reason why we were laughing all day.
* estelle was afraid to move because of a spider sitting on the wall --> correct, because estelle is afraid because of the spider itself, not because of the spider's sitting on the wall.

①a, b, c can all be eliminated because of improper idiomatic usage: the proper idiom is '...a crime for blah blah blah to hold...'
②choice e changes the meaning of the sentence: taken literally, it says that the immigrants found themselves in this unenviable situation not because of the law itself, but because of the passage of the law.
a law being passed

题目问的是可不可以，没说必须要是

题目只问了花费在报纸上的钱！审题要仔细

mark，考虑条件2的时候把条件1也给考虑进去了，如果条件1可以直接回答问题，就不需要考虑1+2的情况

（横向比较）传统来讲每年11月轻量车销售都是最好的，（纵向比较）但是今年11月的销售，即使跟往年11月相比，也是好了很多。所以句意上是转折
B，C比较对象好像也不对等。

主要问题是：collect的对象不对

D的they指代的是fish，因为有grow所以没有歧义。虽然比较拗口，但相比C的语义错误来说是better的

不要再错这种题了OK

注意为划线部分的平行

注意：有强烈的因果关系

忘记时态问题了！！！！！！

为什么要用they were (paying) last year这个过去进行时而不用一般过去时 they did last year呢？

来自ron：
A和E错误：both of these choices are wrong for the same reason: neither of them specifies what we are taking percentages of.
you need to say 43% of californians or 43% of the population of california or 43% of... something.
还有就是it的指代问题！

感觉正确选项有点改变原意了。。但没办法只能选他了

Ron：This is a really, really old problem (over 10 years old, if it\'s in \"set 27\"). The current GMAT won\'t test such oddly constructed sentences, so it\'s best to forget about this one altogether.