A是题干内容的逆命题，不成立。
B：no white-footed mice-->very few animals are infected with L disease，然而虽然题干说extremly rare，白脚老鼠却只是an exception，不排除有其他exception的可能，B的逻辑排除了这种可能性，存在gap。

做阅读题时间太长是硬伤。。。。
本文写陆地蛇的adaption如何应对引力，第二段用海蛇来解释陆地蛇adaption,第三段解释adaption的机制

可不可以看成是因果推理呢？

①注意体会C中 propose to do sth. in order to do sth.与A and B的区别
②C中that was allocated的修饰很奇怪！
③错选了C,没有细细查看自己的选项确保每一项无误导致的失误

为什么不选c呢，减少一个才能增加另一个呀？
a里面的 in the amount allocated the previous year不是有点奇怪么？减少去年的什么量呢？

①For example, in my life I have lived in Boston, Atlanta, Colorado, and California. This does not mean, however, that I still live in each of these places. As my life is an ongoing event, the present perfect is an appropriate verb tense.
② Although I understand your interpretation that this "event" is where the author lived, the intention of the sentence is to use the entire life of the author as the "event."
③要关注句子结构对于逻辑时间先后顺序的影响

平均时薪不含加班费？这是算GMAC的常识吗？

http://gmat.kmf.com/question/c5f1eh.html

文字游戏，因为低质煤单价虽然低，用量更多，所以购买没得总成本谁高谁低压根不知道；所以这题实际上所有总成本都不知道，任何可能性都有，所以只要答案包含可能二字的，都可以选。事实上，如果A选项把might去掉，A-E全部都推不出来。

①ABE的错误在于fewer和less的用法！！！竟然没有注意到！！！
②先occupy再survive

作定语的现在分词短语就近修饰名词individual

down payment是头期款的意思啦~~

第三，except与except for有时可以通用，不过，一般情况下，except for可置于句首，而except则不能。例如：
Everyone is here except Tom. (或：Except for Tom everyone is here.)除汤姆外，大家都到了。

expect不是不能放句首吗？

第三，except与except for有时可以通用，不过，一般情况下，except for可置于句首，而except则不能。例如：
Everyone is here except Tom. (或：Except for Tom everyone is here.)除汤姆外，大家都到了。

expect不是不能放句首吗？

"evidence to suggest" and "evidence that suggests" are both acceptable in this sort of context. neither is a basis for elimination.

normally you would see "evidence that suggests..."
however, they've used "evidence to suggest..." here, in order to avoid writing evidence THAT suggests THAT xxxxx. not because it's wrong -- just because it's ugly.

在一个句子中（GMAT句子改错的考题都是一个句子，所以可以认为在一道句子改错的题目中），只有当两个以上的it（its）或they（them/their）均为真正代词（非形式主语），我们才需要保证它们指代同一个名词。

expect后面不能用宾语从句应该用不定式。

整个事情的逻辑是 因为他是这幅画是德国北部的画家画的，所以他用德国木框。
题目是用德国买了框，推他是德国画的。我要找一个东西说明在德国的画都是用德国的框

1.代词they没有指代对象。
2.a kind of是一个固定搭配，表示某一种，不能拆分。of a kind表示“同一类，相似的”

1.在逻辑上，“黄蜂是什么”和“社会的组成”之间没有并列的关系。
2.同位语有两种：
1-COMMA + ABSTRACT NOUN is allowed to stand for the ENTIRE IDEA OF THE PRECEDING CLAUSE.
例如：the coach tried to put 5 receivers on the line, a strategy that failed.
--> here, "a strategy" (an ABSTRACT noun) stands for the WHOLE IDEA of putting 5 receivers on the line.
2-COMMA + CONCRETE NOUN usually stands for the DIRECTLY PRECEDING NOUN.
例如：i went to the bar with john smith, a consultant in los angeles.