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【单选题】
手机振动器(马达)的理想驱动电压是多少?A.
２Ｖ
B.
５Ｖ
C.
３．３Ｖ
D.
３Ｖ
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A.
The Sugar Act of 1764
B.
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C.
The Quartering Act of 1765
D.
The Tea Act of 1773
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【单选题】如图所示运算电路，当输入电压ui= 1mV时，则输出电压uO为( )。【图片】
A.
运放输出的正饱和值 u O (sat)
B.
运放输出的负饱和值- u O (sat)
C.
u i 与运放开环放大倍数 A u 的乘积
D.
不确定
【单选题】The overseas subsidiaries are set up to______.
A.
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B.
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C.
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D.
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