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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
B. they指代的就是前面的small cars，还是将现在的该小车和其他时候的该小车做比较。at any time没有剔除掉today的时间点。they是同物指代，指代的就是前面出现的东西
C. right，those是同类指代，指代的是同类的small cars。
D. more fuel-efficient small cars有歧义，到底是更多的省油车还是更省油的车？their可能指代manufacturers也可能指代small cars
E. more fuel-efficient small cars有歧义，到底是更多的省油车还是更省油的车？at any time没有剔除today的时间点
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