A:4:2:1
B:3:2:1
C:1:1:1
D:1:2:4
一位同学在做实验时,测得某导体两端电压为2V,通过的电流为0.2A,则这段导体的电阻为____Ω.该导体所消耗的电功率为____W.
I still like those good old songs I often listened to _______myself in my spare time.