电机工作时将机械能转化为 能,电动机工作时电能转化为 能. 发布时间:2017-06-21 21:25 │ 来源:www.tikuol.com 题型:填空题 问题: 电机工作时将机械能转化为 能,电动机工作时电能转化为 能.
题型:填空题 Children are to meet with setbacks as they grow up, so their parents don’t have to worry about it.A.reasonableB.stableC.bound D.skilful 查看答案