汽包是加热、蒸发、过热三个过程的连接枢纽。
参考答案：对
--- Bill, can I get you anything to drink?
--- .
A．You are welcome
B．No problem
C．I wouldn't mind a coffee
D．Doesn’t matter
-____
-No, I’m Mike.[ ]
A. What’s your name?
B. Are you Tom?
C. How are you?
