Clearly, using this test, doctors can largely avoid unnecessary removals of the appendix without, however, performing any fewer necessary ones than before, since ______.意思是：用这个检测，医生能够大量的避免对appendix不必要的移除，然而却不会比之前减少任何必要的移除。
因此，必须证明误诊的2%是增加unnecessary removal而不是见识necessary removal

文章提出一个问题，即虽然GDP每年都在增高，但是除了在萧条时期，这种现象是正常的，但是J忽略了一个问题，就是1997年与之前24年相比的GDP增长率比1873-1973的增长率低。如果经济状况真的很好，应该是反过来的情况；因为1997年有50%的人在工作，而1873-1973只有40%，如果1997年的劳动生产率比1873-1973的劳动生产率高出2%，那么1997年实际的GDP应该会更高，因为1997年的劳动生产率只增长了1%，所以1997年的实际GDP增长率比1873-1973的平均GDP增长率要低

as in the twenty-four years immediately preceding it, the real GDP per capita grew nearly one-half percent a year more slowly than it had on average between 1873 and 1973.

定位在第二段两种情况：1一个祖先在某个岛上适应出成一个不同的分支后移居到其他岛上，2这个物种在进化的时候这几个岛是连在一起的，之后分开之后它们都独立进化成不同的物种，但是还是保留祖先的适应性；这两种情况都暗示了1它们只进化过一次，或者2每种分支都在各个岛上独立的出现；
第三段：If each type of specialist evolved just once, then similar specialists on different islands would be closely related：如果每种分支只进化过一次，那么相同的分支在不同的岛上会非常相似；
结合2+3段，选D

sympatric anole lizard species resemble many other closely related sympatric species in that the anole lizard species:同区域的变色龙蜥蜴和其他非常相关的同区域物种有什么相似之处？—What is striking about these lizards is not that coexisting species differ in morphology and habitat use (such differences are common among closely related sympatric species)：这些共存的物种在形态和栖息地上的区别

this doesn't make sense -- "the elephant", alone, would not be a valid reference, and we need to be told that it was specifically the elephant that gave rides to the children (and not some other elephant). for both of these reasons, the modifier must be an essential (not set off by commas) modifier.

老师对于A选项的解释真是让我豁然开朗

这题用“取非”理解，即如果wasteful projects were mostly projects in districts controlled by the president's party， 那总统还要cancel对手的project 肯定是政治目的，从而削弱了文章的结论

"... declines in reputation" is not idiomatic.
... and even if you don't realize that, you can just take a cue from the fact that "receives" is in the present tense in the non-underlined part.
the other two verbs are part of exactly the same type of description, so they should appear in the same tense.

i have a friend who can sing and whose dog can dance.
--> in this sentence, "who can sing" and "whose dog can dance" both modify "friend".
the same is true with the two modifiers "who receives popular acclaim..." and "whose reputation declines..." in the correct answer to this problem.

要给出另一个 品牌带来的好处

there's also the notion that
possessive + verbING + object
isn't correct, and that the correct version is
possessive + verbING + OF + object

求解答

最简单的办法就是假设有100人

C不对的原因是这句话 causing various fish and shellfish to behave erratically
various fish不一定包括catfish

大家以后看到特殊的提问句，先把提问句吃透，twist就埋藏在这个问句中。出题老头真是又阴险又善良啊。。。

大家不觉得这道题提问方式很special吗？为什么用“The argument is vulnerable to criticism on the grounds that it gives reason to believe that it is likely that”这么长一句话来提问，而不是简单的“strengthen和weaken”来提问，说明玄机就在这儿提问的句子中！
这句话的意思是：“因为the argument gives reasons to believe下面哪一项，所以导致这个argument非常vulnerable？”这句话提示我们：the argument本身是有问题，有逻辑漏洞的！C选项正提出了这个逻辑漏洞：大家既然坐高凳子是为看名人，怎么会坐坐就走呢？而原文说高凳子让人坐时间不长，明显就是逻辑上的悖论！D选项之所以被排除是因为它引入了新内容:“less expensive meals”, 原文的argument根本就没提meal price类的内容，又怎么可能是由原文argument导致的逻辑漏洞呢

in its class！！！

这道题已知一个两线交点，k线穿原点，可以确定k的斜率，又知道两斜率乘积，不就可以确定另外一条线了么？

prep080812 才9套题目啊 多出来的这几套题目不知道哪来的。。。