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【单选题】
对于差动变压器,采用交流电压表测量输出电压时,下列说法正确的是( )。A.
既能反映衔铁位移的大小，也能反映位移的方向
B.
既能反映衔铁位移的大小，也能消除零点残余电压
C.
既不能反映位移的大小，也不能反映位移的方向
D.
既不能反映位移的方向，也不能消除零点残余电压
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A.
suspended
B.
survived
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lingered
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