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果果428

1.        Today’s technology allows manufacturers to make small cars more fuel-efficient now than at any time in their production history.

(A) small cars more fuel-efficient now than at any time in their

(B) small cars that are more fuel-efficient than they were at any time in their

(C) small cars that are more fuel-efficient than those at any other time in

(D) more fuel-efficient small cars than those at any other time in their（C）

(E) more fuel-efficient small cars now than at any time in

句意应该是比较more/less fuel-efficient, 但是C 正确选项中的those 能达到这个目的吗？它是怎么替代的，补足后句子是怎样的呢？谢谢！

果果428

以下是引用rhod在2004-11-8 12:25:00的发言：
请注意比较的是small cars. 所以需要用those保持比较形式的对称.

怎么是比较small cars呢，可是 整个句子里的比较级只有more 一个啊？