将一根导线均匀拉长为原长度的3倍,则它的阻值约为原阻值的() A.3倍 B.6倍 C 发布时间:2019-03-05 15:11 │ 来源:www.tikuol.com 题型:单项选择题 问题: 将一根导线均匀拉长为原长度的3倍,则它的阻值约为原阻值的()A.3倍B.6倍C.4倍D.9倍
题型:单项选择题 书面表达你是怎样度过周末的?是开心还是枯燥?请你在这次的英语角土说说,让大家共分享一下.开头已经给出,不计入总词数.(50词左右)提示词:On SaturdayOn SundayWhat did you do?visit uncle; work on the farmgo to the park; play;sing and danceMy WeekendI had a tired but happy weekend._____________________________________________________________________________________________________________________________________. 查看答案