─___________________.
A:No hurry.
B:I don't care.
C:No problem
D:I'm sorry to hear that.
一导体电阻为9Ω,1分钟内通过导体横截面积电荷量为120C,电流____ mA,导体两端电压____ V.
--- Certainly not.
R
T
Q
W