2. 外语
  3. The ratio of the work done by the machine______the work done on it is called the efficiency of the machine.

The ratio of the work done by the machine______the work done on it is called the efficiency of the machine.

admin2013-06-23  32
问题 The ratio of the work done by the machine______the work done on it is called the efficiency of the machine.
选项 A、against
B、with
C、to
D、for
答案C
解析 题中ratio与介词to是固定搭配，the ratio of A to B的意思为“A与B之比(率)”，故选C。
转载请注明原文地址:https://jikaoti.com/ti/7IuMFFFM
本试题收录于： 大学英语三级A级题库大学英语三级分类
0

大学英语三级A级

大学英语三级

相关试题推荐
随机试题
最新回复(0)