A:what, however
B:That, whatever
C:whatever, however
D:what, whatever
如图,在锐角△ABC中,BC=10,高AD=8,矩形EFPQ的一边QP在BC边上,E、F两点分别在AB、AC上,AD交EF于点H.
—The number of the students in our class fifty-six.
—How many of are girls?
在等式y=ax+b中,当x=﹣1时,y=0;当x=1时,y=﹣2;则( )