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当前学科:二级注册计量师
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一台0~150V的电压表,说明书说明其引用误差限为±2%。说明该电压表的任意示值的用绝对误差表示的最大允许误差为()。
A . A.±3V
B . B.±2%
C . C.±1%
D . D.±1V
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