扫描二维码，直接登录
题库 / Prep2007E2-SC-131
Today's technology allows manufacturers to make small cars more fuel-efficient now than at any time in their production history.
small cars more fuel-efficient now than at any time in their
small cars that are more fuel-efficient than they were at any time in their
small cars that are more fuel-efficient than those at any other time in
more fuel-efficient small cars than those at any other time in their
more fuel-efficient small cars now than at any time in
请看讲解视频
cd错选d
more应该修饰f-e，而不是更多小车，重点在f-e，所以选c
登录 或 注册 后可以参加讨论