—Mary, what would you say to a holiday for the weekend?

—     I am simply tired of life here.

A．You’ve just taken the words out of my mouth

B．Enjoy yourself.

C．I can’t afford the time

D．Where should we go?

酸洗后的管道和设备，必须迅速进行( )。

A．钝化

B．预膜

C．脱脂

D．清洗