The air-conditioner is running in the winter and to be stopped, we should()

A . close Fan and Humidifier at the same time B . firstly close Fan and then close humidifier immediately C . firstly close humidifier and then close Fan immediately D . firstly close humidifier and then close Fan after 30 second

时间:2022-10-15 23:43:09 所属题库:船舶电气与船舶安全题库

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