—Everyone should learn to say "I love you" to their parents often
—I think so. in life is more important than family.
A:Something
B:Everything
C:Anything
D:Nothing
一战后“又使中国回复到几个帝国主义国家共同支配的局面”的条约是( )
如图所示是额定电压为220V的理发用电吹风的典型电路,其中电热丝通电后可以发热,电动机通电后可以送风,且电动机的额定功率为120W.
已知全集U={1,2,3,4,5,6},集合P={1,3,5},Q={1,2,4},则(∁UP)∪Q=( )
已知点A(0,﹣2),椭圆E: x2a2 + y2b2 =1(a>b>0)的离心率为 32 ,F是椭圆的焦点,直线AF的斜率为 233 ,O为坐标原点.
(Ⅰ)求E的方程;
(Ⅱ)设过点A的直线l与E相交于P,Q两点,当△OPQ的面积最大时,求l的方程.
____, I'm afraid I ____.