国际顶尖MBA申请交流平台--TOPWAY MBA

标题: 关于平行 [打印本页]

作者: thinkingape 时间: 2011-3-14 07:07 标题: 关于平行

The application of a new method for analyzing the chemistry of tooth enamel allows scientists to examine molars of prehuman ancestors and determining that their diets were more varied than had been supposed.

(A) The application of a new method for analyzing the chemistry of tooth enamel allows scientists to examine molars of prehuman ancestors and determining

(B) Through the application of a new method for analyzing the chemistry of tooth enamel, the molars of prehuman ancestors were examined by scientists who determined

(C) When they applied a new method for analyzing the chemistry of tooth enamel, scientists examined molars of prehuman ancestors, determining

(D) Applying a new method for analyzing the chemistry of tooth enamel, the molars of prehuman ancestors have been examined by scientists, who determined

(E) Applying a new method for analyzing the chemistry of tooth enamel, scientists have examined molars of prehuman ancestors and determined

key: E
答案无异议。
请问这里是 have examined....and determined 平行
还是 have determined ...and (have) determined 平行

作者: swlfxer 时间: 2011-3-15 06:40

我觉得应该是have determined ...and (have) determined 平行

作者: philipyu1025 时间: 2011-3-15 21:46

have examined... and (have) determined这里是助动词have的省略

作者: thinkingape 时间: 2011-3-16 06:43

那什么情况下需要省略have呢？

作者: 小宇宙2010 时间: 2011-3-18 06:57

是have的省略~~

to do and (to) do
have done and (have) done
is doing and (is) doing

括号里面都是可以省略的内容~~

当N个to do并列时
如：to do, to do, to do, ..., to do.
如果第二个to省略那么后面的to全都要省略
如果第二个to没有省略那么后面的都不省略
。。。。。

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