2. 外语
  3. The substance can be added to gasoline to accelerate the speed of automobiles.

The substance can be added to gasoline to accelerate the speed of automobiles.

admin2011-01-22  9
问题 The substance can be added to gasoline to accelerate the speed of automobiles.
选项 A、quicken
B、shorten
C、loosen
D、enlarge
答案A
解析 全句意思：这种物质添加到汽油中可以加快汽车的行驶速度。accelerate的同义词有speed up及quicken等。enlarge：扩大。例如：I want to enlarge the scope of our activities．我想扩大我们的活动范围。loosen：变松，解开。例如：He loosened his grip on the handle．他松开了握住把柄的手。shorten：缩短。例如：The highway shortened the distance between the
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