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下列关于实验仪器的使用方法,错误的是( ) A.使用电流表测量电流之前要先试触较大量程,防止被
下列关于实验仪器的使用方法,错误的是( ) A.使用电流表测量电流之前要先试触较大量程,防止被
2025-02-10 23:13:01
推荐回答(1个)
回答1:
A、使用电流表测量电流之前要先试触较大量程,防止被测电流超过电流表的量程,说法正确,不符合题意;
B、温度计读数时,视线要与液拄的上表面相平,说法正确,不符合题意;
C、在连接电路的过程中,开关应该是断开的,说法正确,不符合题意;
D、用天平测铁块质量时,发现放砝码的右盘下沉,应用较小质量的砝码替换质量较大的砝码,然后调节游码,使调平平衡,不应向左调节平衡螺母,D说法错误,符合题意;
故选D.
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