— is your favorite teacher?
— Paul. I like his class.
A:Which
B:What
C:Who
D:Whose
①2.5×7.1×4
②16.12×99+16.12
③113-(34.15+38.25)÷2
图二是20世纪50年代朝鲜半岛形势图,该图可以反映出( )
由幂函数y=x12和幂函数y=x3图象围成的封闭图形面积为( )