【判断题】空调机正常制冷工作时进入蒸发器的是高温高压气体。
【单选题】空调机组正常工作时,进入蒸发器的是()制冷剂
【简答题】A.Join a music group. B.Write music for the group. C.Direct the music group. D.Watch a musical performance.
【简答题】A.Join a music group. B.Direct the music group. C.Write music for the group. D.Watch a musical performance.