用导线在某种材料做成的芯子上绕成螺线管,称为()。A、天线线圈 B、阻流圈 C、偏转 发布时间:2019-11-01 02:30 │ 来源:www.tikuol.com 题型:单项选择题 问题: 用导线在某种材料做成的芯子上绕成螺线管,称为()。A、天线线圈B、阻流圈C、偏转线圈D、电感线圈
题型:单项选择题 读我国温度带图,完成1—2题。1、下列地形区中,位于暖温带的是[ ]A.准噶尔盆地B.内蒙古高原C.塔里木盆地D.东北平原2、海口属于[ ]A.热带B.温带C.寒带D.亚热带 查看答案
题型:单项选择题 In our own galaxy, the Milky Way, there are perhaps 200 billion stars, a small part of them probably have planets on which life is feasible.A.a small fraction in whichB.a small fraction of whichC.a small fraction whichD.which a fraction of 查看答案