标题: 大家帮我看下这道题答案我怎么觉得有错误呢？GWD30-Q29 [打印本页] 作者: casy2003 时间: 2011-6-12 14:20 标题: 大家帮我看下这道题答案我怎么觉得有错误呢？GWD30-Q29 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.
more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than
more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is
that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than
that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than
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: CB
大家帮我看下，我觉得这道题应该选C，可是答案给的是B。 我觉得B里面的be needed for doing，whether or not都是有问题的～～作者: colasama 时间: 2011-6-12 14:42
这题答案竟然有争议..