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若发生有毒气体泄漏，应立即启动排气装置将有毒气体排出，同时打开门窗使新鲜空气进入实验室（）

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若发生有毒气体泄漏，应立即启动排气装置将有毒气体排出，同时打开门窗使新鲜空气进入实验室（）

A.正确

B.错误

参考答案:

答案：A

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