(74) is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains。

A:Repeater B:Bridge C:Router D:Switch

(74) is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains。

A:Repeater B:Bridge C:Router D:Galway

"When approaching______with a risk of collision, the bearing is most likely to remain unchanging．

A:a very large ship B:a tow C:a ship at close range D:a general cargo ship at range of about 6 nautical miles"

"Of the following,______is not an act taken to avoid collision．

A:detecting of risk of collision in advance B:taking early & positive action in compliance with the applicable regulations C:checking that such action is having the desired effect D:reporting immediately the risk of collision to the master of ship"

"It is inferred that risk of collision is reduced to minimum on ______．

A:single track B:one-way route C:two-way route D:recommended routes

"It is inferred that the collision occurs in a ______ situation．

A:head-on B:over-taking C:crossing D:end-on

After a collision or accident involving an uninspected vessel, regulations require that the operator assists persons affected,but only if the operator can do so without ______．

A:further damaging the other vessel B:undue delay C:serious danger to his or her own vessel D:creating a panic on either vesse"