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> 用已经调好平衡的天平测物体质量时，右盘中已放有50g、20g、10g砝码各一个，天平指针如图所示．此时紧接着下面的操作肯定错误的是 A.往天平右盘增加一个10g的砝码 B.往天平右盘增加一个5g的砝码 C.把游码向右调 D.把平衡螺母向右旋

问题：

发布时间：2024-09-07

用已经调好平衡的天平测物体质量时，右盘中已放有50g、20g、10g砝码各一个，天平指针如图所示．此时紧接着下面的操作肯定错误的是

A.往天平右盘增加一个10g的砝码
B.往天平右盘增加一个5g的砝码
C.把游码向右调
D.把平衡螺母向右旋

参考答案：

提问用户：xA***sI0

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