The nice boy ______ France. [ ] A. come 发布时间:2017-05-24 23:25 │ 来源:www.tikuol.com 题型:选择题 问题: The nice boy ______ France. [ ]A. come from B. is from C. is come from D. is comes from
题型:选择题 关于电磁感应现象,下列说法中正确的是( )A.只要有磁通量穿过电路,电路中就有感应电流B.只要闭合电路在做切割磁感线运动,电路中就有感应电流C.只要穿过闭合电路的磁通量足够大,电路中就有感应电流D.只要穿过闭合电路的磁通量发生变化,电路中就有感应电流 查看答案