---Currently it is difficult to find a good job in the fierce job-hunting market.

---_____. But highly-qualified graduates are always in great demand.

A．I hope so

B．That’s all right

C．No kidding

D．That sounds reasonable

原水加药后，经混凝使水中悬浮物和胶体形成大颗粒絮凝体，而后通过（）进行重力分离。

A、消毒池

B、澄清池

C、沉淀池

D、过滤池