根据句意及首字母提示补全单词。

1. They're on v _____ in Shanghai right now.

2. He has a wide k _____ of painting and music.

3. How much does it cost to become a m _____ ?

4. "Jim paints well" means he is a good p_____. 

5. "Take a s _____ "means "take a bath".

作为萃取胡萝卜素的有机溶剂，哪一项不符合实验要求 [ ]

A．能充分溶解色素

B．与水混溶

C．对人无毒

D．易与产品分离