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实验仪器和基本操作

> 下列实验操作正确的是 A.滴加液体时，胶头滴管伸入试管内滴加 B.用试管夹夹持试管时，应夹在试管的中上部 C.用剩的药品及时放回原瓶 D.加热液体时，液体体积不超过试管容积的

问题：

发布时间：2024-09-12

下列实验操作正确的是

A.滴加液体时，胶头滴管伸入试管内滴加
B.用试管夹夹持试管时，应夹在试管的中上部
C.用剩的药品及时放回原瓶
D.加热液体时，液体体积不超过试管容积的

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