题目内容

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

A against
B with
C to
D for

查看答案

搜索结果不匹配？点我反馈

更多问题

________ the flood, the ship would have reached its destination on time.

A In case of
B In spite of
C Because of
D But for

In your first days at the school you’ll be given a test to help the teachers to ________ you to a class at your level.

A locate
B assign
C deliver
D place

The story that follows ________ two famous characters of the rocky Mountain gold rush days.

A concerns
B states
C proclaims
D relates

America will never again have as a nation the spirit of adventure as it ________ before the West was settled.

A could
B was
C would
D did