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

游客2024-06-24 42

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:http://tihaiku.com/zcyy/3648158.html

相关试题推荐

随机试题

最新回复(0)

Theratiooftheworkdonebythemachine______theworkdoneonitiscalledthe