新版PREP 250题，很晕，C、D不会比,求助！

panbangzhu

250.        (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

很晕，最后只剩下C、D，不会比,求助！

panbangzhu

明白了！谢谢！

pennmou

你把这俩选项翻译成中文就明白啦。 另外如果用that的话，不应该用any better吧，肯定句里应该用some吧