求如图所示的交变电流的有效值，其中每个周期的后半周期的图象为半个周期的正弦曲线（ 发布时间：2017-07-25 17:10 │ 来源：www.tikuol.com 题型：选择题 问题： 求如图所示的交变电流的有效值，其中每个周期的后半周期的图象为半个周期的正弦曲线（ ）A．5AB．5AC．5/2AD．/2A
题型：选择题 补全对话A: Look, there is a bag under the tree. 1 B: I don't know. Let's have a look. Oh, there is a soccer in it. 2 A: I don't think so. Many girls enjoy playing soccer now. 3 B: Yes, there is an English book and a notebook in it.A: Open them and see. 4 B: OK, you are so clever. Yes, there is an English name here-David.A: I know it must belong to a boy. B: Of course. 5 A: There're some other words here--Class Eight, Grade Nine. Let's go to find him.A. Everybody knows David is a name for a boy. B. Are they new?C. Maybe there is a name in the book. D. Is there anything else in it?E. Who's your favourite football star? F. Whose is it?G. Do you think it must belong to a boy? 查看答案
题型：选择题 以下选项中，符合我国公务员兼职规定的是( )A．公务员不得在企业或者其他营利性组织中兼任职务B．公务员不可以在机关外兼职C．公务员在机关外兼职不需要经有关机关批准D．公务员在机关外兼职可以领取兼职报酬 查看答案
A
/2
/2A