Each machine in the Internet is assigned a unique network address,called（）that is used to identify the machine for communication purposes.

A.MAC address

B.IP address

C.host address

D.domain name address

主油缸活塞杆伸出，压紧滤板并形成全部滤室。然后，隔膜泵自动投入运行，把矿浆迅速压入滤室，此阶段称为压滤机的（）。

A、灌浆填充

B、排水阶段

C、加压过滤脱水

D、加压吹干滤饼阶段