— Do you have a good friend?
— Yes. I have a friend who talks but does than me.
A:little; much
B:less; more
C:less; much
D:few; many
下列代数式,哪些是整式?
1﹣a,x2,32+42,x2-y2x2+y2,-38x3y4,qp,x2﹣8x+7.