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【单选题】
交流电流表或电压表指示的数值是( )A.
平均值
B.
有效值
C.
最大值
D.
最小值
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【判断题】我某公司按CIF条件出口某商品，采用信用证支付方式。买方在约定时间内未开来信用证，但约定的装运期已到，为了重合同和守信用，我方仍应按期发运货物。（ ）
A.
正确
B.
错误
【简答题】GPS 网的基准包括 、 、 。
【单选题】Which of the following statements is not true about rock and roll?
A.
Rock and Roll seldom challenged cultural and political authorities.
B.
As a rebellious kind of music, Rock and Roll touched a range of subjects that had largely been taboo.
C.
Rock and Roll soon found resonance among young Americans since its birth.
D.
Since Rock and Roll was often associated with drugs and sex, parents condemned it as immoral and a threat to the standards of decency.
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