―I guess you might have got lost there last Sunday.

―Well, I_______.

A．mostly did

B．nearly had

C．almost had

D．almost did

不锈钢管道进行油清洗前应采用的处理方法为()。

A.水清洗

B.酸洗

C.空气吹扫

D.蒸气吹扫