两个电阻R1、R2并联,若其总电阻为R,请你根据欧姆定律和并联电路的电流、电压特 发布时间:2017-08-08 02:49 │ 来源:www.tikuol.com 题型:问答题 问题: 两个电阻R1、R2并联,若其总电阻为R,请你根据欧姆定律和并联电路的电流、电压特点,试证明:1R=1R1+1R2.
题型:问答题 It was last year _____ I visited the museum _____ you had visited. A.that; that B.when, whereC.that; whereD.when; that 查看答案