GWD 30-29

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.

1. more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than
2. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is
3. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than
4. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than
5. 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

Answer is B, I doubt that it should be C.

The answer is C.

?????B后面助动词能补出个is,要补也应补个was啊。另外B中whether or not 多余啊。

答案偶选C啊。

写上OG-87供参考：

87. Beyond the immediate cash flow crisis that the museum faces, its survival depends on if it can broaden its membership and leave its cramped quarters for a site where it can store and exhibit its more than 12,000 artifacts.

(A)  if it can broaden its membership and leave

(B)   whether it can broaden its membership and leave

(C)  whether or not it has the capability to broaden its membership and can leave

(D)  its ability for broadening its membership
                and leaving

(E)   the ability for it to broaden its membership
                and leave

Choice A is faulty because it uses the unidiomatic construction depends on if; whether is required to connect depends on with the clause beginning it can.... Choice C uses whether or not where only whether is needed, includes the awkward and wordy construction has the capability to, and unnecessarily repeats the idea of capability with can. Choices D and E use unidiomatic constructions where the phrase its ability to broaden is required. Choice B--idiomatic, concise, and correct--is best.

这题好怪啊

哪位NN能帮助解答下呢

1, that 为什么不要

2，whether or not 用是因为语气这里不确定么？

3， 为什么用is

顶！

1 but标志平行结构,Researchers agreed that ,所以后面的that不能省

2  前面虽然是agree 但是but 语气转折 后面并非确定 whether 比that 更适合

3 whether 后面说的是一个不能肯定的猜测，并不是已经发生了的事,whether 从句做 determine 的宾语

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.

1. more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than
2. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is
3. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than
4. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better
                       for heart attack patients than
5. 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