根据图片,选择合适的选项填空完成对话。 A. standing B. talki 发布时间:2017-05-04 14:36 │ 来源:www.tikuol.com 题型:补全对话,情景问答 问题: 根据图片,选择合适的选项填空完成对话。 A. standing B. talking C. crying D. playing1. What is he doing?He is ____________.2. What is she doing?She is ____________.3. What are they doing?They are ____________.4. What is she doing?She is ____________.
题型:补全对话,情景问答 一个单匝闭合线圈的磁通量始终是每秒均匀的减少2Wb,则( )A.线圈中的感应电动势一定是每秒减少2VB.线圈中的感应电动势一定是2VC.线圈中的感应电流一定是每秒减少2AD.线圈中的感应电流一定是2A 查看答案