标题: [求助]OG11-50（紫皮），research的用法 [打印本页] 作者: 彼岸无岸 时间: 2009-9-16 02:13 标题: [求助]OG11-50（紫皮），research的用法 Domestic automobile manufacturers have invested millions of dollars into research to develop cars more gasoline-efficient even than presently on the road. (A) into research to develop cars more gasoline-efficient even than presently on the road (B) into research for developing even more gasoline-efficient cars on the road than at present (C) for research for cars to be developed that are more gasoline-efficient even than presently on the road (D) in research to develop cars even more gasoline-efficient than those at present on the road (E) in research for developing cars that are even more gasoline-efficient than presently on the road 答案是D，我的问题是B选项中解释说Research must be followed by to develop, not for developing这是为什么啊？顺便请教一下research的用法
