下列关于过滤、蒸发、蒸馏、萃取的说法正确的是（ ） A．上述中四种分离方法过程中

A: What are you doing for vacation,ChenMing?
B: I'm going to XinJiang.
A: That sounds interesting,1._____
B: I'm going hiking in the desert.(沙漠)
A:2._____ 
B: Just for a week.
A: When are you leaving?
B:3._____ 
A:4._____ 
B: Thank you.
A: 5._____