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标题: 一个简单的时态题我却糊涂了求教啊 [打印本页]

作者: superfanluyao 时间: 2010-8-8 10:01
标题: 一个简单的时态题我却糊涂了求教啊
250.(25489-!-item-!-188;#058&001585)(GWD30-Q29)

Researchers agreed that the study of new treatments for heart attack patients was extremely important but more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than the balloon procedure by itself.

A. more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than

B. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is

C. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than

D. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than

E. that more research was needed for determining that balloon angioplasty preceded by ultrasound is or is not any better for heart attack patients than is

C是正确的可我觉得都是过去时态为什么 C要用is啊

作者: superfanluyao 时间: 2010-8-8 11:48
要沉了顶起来= =
坐等解答

作者: fengshou 时间: 2010-8-8 11:57
C跟D的区别是 whether...is 和 that...was 的区别

不过在这里说的是一个还要更多research的问题还是whether...is搭配比较好

作者: superfanluyao 时间: 2010-8-8 12:30
可是时态貌似不对啊难道是题不好？

作者: fengshou 时间: 2010-8-8 21:56
是搭配的问题不是时态滴问题。

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