【判断题】电能从生产到消费一般要经过发电、输电、配电和用电四个环节。
【单选题】电能从生产到消费一般要经过发电、输电、配电和()四个环节。
【判断题】电能从生产到消费一般要经过发电、输电、配电和用电四个环节。
【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.