It's cold today. The window is _______. Joan, go and _______ it, please.

A．closed, open

B．open, close

C．close, open

D．open, closes

组成香粉、胭脂、眼影粉等化妆品最重要的基本原料是（）。

A.油性原料

B.粉类

C.溶剂类

D.表面活性剂