某导体两端的电压为5V ,通过它的电流500mA ,该导体的电阻Ω;如果导体两端 发布时间:2017-04-21 05:33 │ 来源:www.tikuol.com 题型:填空题 问题: 某导体两端的电压为5V ,通过它的电流500mA ,该导体的电阻 Ω;如果导体两端电压突然变为零,导体的电阻是 Ω。
题型:填空题 —My grandma is ill, so I'm not going to the cinema with you. —_____[ ]A. It doesn't matter. B. Are you going to look after her?C. I'm sorry to hear that. D. Don't worry. 查看答案