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【单选题】

转速计上的RPM含义是()。

A.
每秒钟转几转
B.
每分钟转几转
C.
每时转几转
D.
每次钟转几转
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题目标签:转速计
参考答案:
参考解析:
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【单选题】Questions 62 to 66 are based on the following passage. If a mother pushes her small son in a swing (秋千), giving only a light force each time he returns, eventually he will be swingirg.quite high. The ...

A.
the speed of a motor in revolutions
B.
the frequency at which a motor vibrates
C.
the amplitude of an engine that oscillates
D.
the changes in a dial within a ear engine

【单选题】转速计上的RPM含义是()。

A.
每秒钟转几转
B.
每分钟转几转
C.
每时转几转
D.
每次钟转几转