现代化的培训技术主要包括：幻灯、广播、电视、（）等。

A、唱片

B、录音

C、录像

D、语音室

E、多媒体

The davit aboard a ship is used to（）.

A.lower personnel down by a transfer basket

B.lower food and water to personnel in a life raft

C.lower the life raft down with its full complement

D.move equipment around the deck