如图所示的实物连接中,开关闭合时会造成电源短路的是 A.开关的接线柱上接线不牢 发布时间:2017-04-25 23:03 │ 来源:www.tikuol.com 题型:选择题 问题: 如图所示的实物连接中,开关闭合时会造成电源短路的是 A.开关的接线柱上接线不牢B.灯座的接线柱上接线不牢 C.开关的两接线柱上用导线连通D.灯座的两接线柱用导线连通
题型:选择题 While we were running on the playground, Jack suddenly stopped ________ and lay on the ground, so we all stopped ________ what was wrong with him. [ ]A. to run; to seeB. running; seeingC. running; to see 查看答案