() is used for sensing the temperature of the room in the air condition system. ["An expansion valve","An evaporator","A thermostat","A condenser"]
生产过程中是否要执行首、中、尾检?要哪个阶段后方可开始生产?
下列化学品中,()不属于《危险化学品安全管理条例》的管理范围。 ["苯","汽油","农药","城市燃气"]
The fog is lifted,so()the radar. ["close","open","switch off","switch o"]
当报警人重复报警或催促时,应该怎么办?
()是企业组建的由外部高级咨询人员构成的参谋集团。