--- I don't think I will be able to go with you after all

--- _______ You are always staying at home!

A．I don’t agree.

B．What a pity!

C．Suit yourself.

D．How come?

血浆胶体渗透压决定于：()

A．血浆总蛋白

B．球蛋白

C．白蛋白

D．血红蛋白

E．纤维蛋白