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【单选题】
整流电路的输出电压应属于( )A.
平直直流电压
B.
交流电压
C.
脉动直流电压
D.
稳恒直流电压
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】Better not call the manager between 8 and 9 this evening, for he_________ an important meeting then.
A.
will have
B.
would have
C.
will be having
D.
will have had
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