Main Board的意思是（）。

A:主要部件 B:主控制器 C:主机板 D:主机

There are more ( ) in the board.

A:woman directors B:woman as director C:women directors D:women director

Clean On Board B/L （）

bulletin board system(BBS)

Compressed air is used on board ship _____.

A:for starting diesel engines B:in pneumatic control system C:in pneumatic tools D:All the above are true

The main causes of fire on board ships are _____.

A:oil leakage in engine-room B:hot work （welding, cutting, etc.） C:static electricity D:All of the above

Emergency generator is installed on board mainly to ____.

A:connect to the busbar when the load increasing B:supply power specially to charging panel C:be put into operation during the ship arriving at or leaving port D:ensure the power supply to critical equipment after the main switchboard out of power

"Nowadays, the helmsman is ______ on board．

A:Ordinary seaman B:Bosun C:Able seaman D:Carpenter"

Which board can support NR

A:UMPTe B:LMPT C:UMPTa D:UMPTb