[求助]Prep中两道not...but...的题

peterlee630

73.  (28457-!-item-!-188;#058&003634)Evolutionary psychology holds that the human mind is not a "blank slate," but instead that it comprises specialized mental mechanisms that were developed as a way of solving specific problems human ancestors faced millions of years ago. B

(B) the human mind is not a "blank slate" but instead comprises specialized mental mechanisms that were developed to solve

74.  (28503-!-item-!-188;#058&003635)

Paleontologist Stephen Jay Gould has argued that many biological traits are not the products of natural selection, favored due to their enhancement of reproduction or survival, but that they are simply random by-products of other evolutionary developments. D

(C) because they enhance reproduction or survival, but

(D) because they enhance reproduction or survival, but are

以前做的not X but Y, X和Y都是很平行的。可第一题中，not 后面是n. 而but后面又是一个主谓； 第二题，我选C，可答案是D。

这个结构是怎么用的？请大家指教～～～～

BTW 这个月GMAC在想什么？！怎么不换题库了。。。

[此贴子已经被作者于2008-6-27 16:18:27编辑过]

peterlee630

马上就要考了，大家快来帮忙啊～～～谢谢

Wish everyone good luck in July!

peterlee630

为啥没人理～～～～～～～～～～

大家快来帮帮忙吧

笨笨可可

首先没有非常形式的平行。。

比如说最典型的那提OG题目：in part to...in part because.。。

功能平行也对。。

笨笨可可

不过我有另外一个疑问：

(C) because they enhance reproduction or survival, but

(D) because they enhance reproduction or survival, but are

怎么看都感觉but 是有连接在because后面的嫌疑阿。。

感觉but是becasue后面的分局。。对不？