如通过某电灯的电流I=6A,其两端电压U=24V,则该电灯的功率P=()。
参考答案:144J/s
My father with my mother __________ my grandparents’ home every Sunday.
A.is going
B.are going
C.is going to
D.are going to
牛的发情周期平均为()天,妊娠期平均为()天。