从右栏中找出左栏各句的应答语。

①What does he look like?____     A. It's yellow.

②Is his bike new?____                 B. Yes, they are.

③Whose book is this?____          C. He has gray hair.

④Are these your apples?____      D. Sorry, I don't know.

⑤What color is your coat?____     E. It's mine.

下列河流中，发源于青藏高原上的是（    ）