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【单选题】
下列不属于闭环频域性能指标的是()。A.
ω b
B.
ω r
C.
M r
D.
ω c
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举一反三
【单选题】Many philosophers spend much of their time in contemplation.
A.
debating
B.
thinking
C.
writing
【简答题】阅读理解。 Many children like collecting stamps. Stamps collecting didn’t begin until 1854. As time goes on, there are more and more kinds of stamps. These stamps are very beautiful and interesting. There ...
【单选题】Many a time ___ good advice.
A.
) gives me his
B.
) he gives me
C.
) I give him
D.
) does he give me
【单选题】【单选】关于空压机转向的表述,不正确的是
A.
转向不能相反，否则空压机的吸排将相反
B.
转向不能相反，否则兼作风扇的飞轮，将改变风向
C.
转向不能相反，否则对于强力润滑系统，油泵供油将相反，从而造成严重机损
【单选题】下列成语中没有错别字的一项是( )
A.
合盘托出 惊心动魄 不理不踩
B.
不求甚解 价值连城 截然不同
C.
肆无忌惮 眼花瞭乱 索然无味
D.
刻勤克俭 疲倦不堪 酷热难耐
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【单选题】Many philosophers spend much of their time in contemplation.
A.
debating
B.
thinking
C.
writing
参考解析：
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