物理实验课后,实验室不见了一把游标卡尺。物理老师生气地说:“班上怎么出贼了!”这让我也很气愤,马上到班上去调查,可同学们都说没有看见。怎么办呢?冷静下来之后,我对这件事作了仔细分析:游标卡尺是比较贵重的东西,每个实验小组只有一 After the physics experiment, the laboratory lost a vernier caliper. The physics teacher said angrily: “How did the class get a thief?” It also made me angry. I immediately went to the class to investigate. But the students said they did not see it. How to do it? After calm down, I made a careful analysis of this matter: Vernier calipers are more valuable things, and each experimental group has only one