（）is used for receiving maritime safety information which is automatically printed by the receiver.

A.NAVETEX receiver

B.Search and Rescue Transponder

C.Emergency Position Indicating Radio Beacon

D.Digital selective calling

流感流行季节，下列哪些做法是对的？（）

A.打喷嚏捂住口鼻

B.勤洗手、洗干净手

C.开窗、通风

D.带病坚持工作