对于电压为6kV,功率在5000kW以下的线圈,在额定电压且温度在20°以下的介质损 发布时间:2018-01-16 20:42 │ 来源:www.tikuol.com 题型:单项选择题 问题: 对于电压为6kV,功率在5000kW以下的线圈,在额定电压且温度在20°以下的介质损耗角正切值不得超过( )。A.1B.2C.1%D.2%
题型:单项选择题 Chinese people drink _______ beer per person now as they did ten years ago. [ ]A. twice asB. as twice as C. more than twice as much D. more than twice 查看答案