用托盘天平测量物体的质量.测量过程中向右移动游码的作用相当于

用托盘天平测量物体的质量.测量过程中向右移动游码的作用相当于

A.向左调节平衡螺母    B.向右调节平衡螺母

C.往右盘里增加砝码    D.从右盘里减去砝码

 

答案

C

 解析:略

 

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