—I wonder ________ so many people are crazy about Gangnam Style.

—It's good for bodybuilding, and it brings people a lot of fun, you know.

A．how

B．where

C．why

D．that

真热假寒的面色为（）。

A.面呈青色

B.面色紫黯

C.浮红如妆

D.满面通红

E.面呈黑色