题目内容
(请给出正确答案)
[判断题]
用飞轮调节周期性速度波动时,可将机械的速度波动调为零。()
提问人:网友15***596
发布时间:2022-01-07
A、机械系统的速度是非周期性波动的
B、机械系统的速度是周期性波动的
C、机械系统的转动惯量是恒定不变的
D、飞轮是必须能安装在机械系统的主轴上的
B.didn’t
C.wouldn’t
D.shouldn’t
B.most partners have been proved to grow alike
C.the influence between partners can be quite strong
D.happily-married couples are often richer than others
B.The hormones of pregnancy
C.More exercise
D.Taking care of children
B.able to
C.capable of
D.able of
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