鱼肝油主要含有维生素A和哪种维生素？
参考答案：
鱼肝油主要含有维生素A和维生素D。
速率散射比浊分析
—Madam, Would you mind my opening the window?
— ________. My baby has a cold. [ ]
A. Of course not.
B. OK. I'll do it right away.
C. Yes, please.
D. Sorry, I'm afraid you can't
