当燃气相对密度比空气轻时,可燃气体检测报警器与燃具或阀门的水平距离应控制在()m。 ["0.05-0.5","0.5-2","0.5-8","2-5"]
膨胀干燥机机体振动超标,原因可能是()。 ["轴弯曲","转子不平衡","螺套损坏","地窖螺栓松动"]
著有论述燥邪为患的专篇──“秋燥论”的医家是:(). ["刘完素","俞根初","沈目南","喻嘉言"]
下列秋燥的治疗方法中,哪种提法是错误的?() ["A.邪袭肺卫,治以辛凉甘润","B.燥干清窍,治宜轻清宣透上焦气分燥热","C.燥热化火,伤及肺阴,治宜清肺润燥养阴","D.燥热化火,治以苦寒清热泻火为主"]
地上引入与建筑物外墙之间的净距应便于安装和维修,宜为()m。 ["0.05-0.1","0.1-0.15","0.15-0.2","0.2-0.25"]
KG9701低浓度甲烷传感器的信号输出类型是()型。