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> 实验方法归纳（　　） A．玻璃容器都可用作反应容器 B．制取气体时，应先检查装置的气密性 C．加热试管里的固体或液体，先要预热 D．点燃可燃性气体前必须检验气体纯度

问题：

发布时间：2024-09-11

实验方法归纳（　　）

A．玻璃容器都可用作反应容器

B．制取气体时，应先检查装置的气密性

C．加热试管里的固体或液体，先要预热

D．点燃可燃性气体前必须检验气体纯度

参考答案：

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实验方法归纳（ ） A．玻璃容器都可用作反应容器 B．制取气体时，应先检查装置的气密性 C．加热试管里的固体或液体，先要预热 D．点燃可燃性气体前必须检验气体纯度

可能感兴趣的题目：

实验方法归纳（　　）

A．玻璃容器都可用作反应容器

B．制取气体时，应先检查装置的气密性

C．加热试管里的固体或液体，先要预热

D．点燃可燃性气体前必须检验气体纯度