—Excuse me．Could you please tell me          ?

—Certainly．Take the escalator to the second floor and turn left, There is a bank next to the drugstore.

A．where can I exchange money

B．where the post office is

C．which is the way to the bank

D．how I can get to the restaurant

在闭路筛分工艺流程中，（）是破碎生产中不可缺少的环节，它与破碎作业一起，组成破碎工艺流程。

A、筛选作业

B、筛分作业

C、定时作业

D、检查作业