【判断题】【消耗次数：1】
最大超调量Mp与系统的阻尼比ζ和固有频率wn有关。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
传动系统的固有频率对传动精度有影响，（ ）固有频率可减小系统的传动误差，（??? ）系统刚度可提高固有频率。
①
提高，减小
②
提高，提高
③
减小，提高
④
减小，减小
【判断题】
为减少机械传动部件的扭矩反馈对电机动态性能的影响，机械传动系统的基本固有频率应低于电气驱动部件的固有频率的2~3倍，同时，传动系统的固有频率应接近控制系统的工作频率，以免系统产生振荡而失去稳定性。
①
正确
②
错误
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With the help of the government , a large number of people ---_______ after the flood in 1991.
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survived
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A ____ is a person who ____ _____.
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crime; commit; criminal
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commit; criminal; crimes
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_____their differences,the couple were developing an obvious and genuine affection for each other .
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in place of
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The pressure _____ causes Americans to be energetic, but it also puts them under a constant emotional strains.
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We should make a clear ____ between the two scientific terms for the purpose of our discussion.
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separation
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