加在阻值12 Ω的电阻两端的电压是6V ,则在3 分20 秒内通过该电阻的电量是多少?
100C
He didn’t work hard; he was dismissed by the boss.
A.thus
B.instead
C.anyhow
D.however
普通商品住宅的设计使用年限为()年。
A.30
B.50
C.70
D.100