Electronic Chart Display and Information system can assist the mariner in（）.

单项选择题When you doubt the existence of risk of collision,（）.

A.such risk shall be deemed to exist
B.Such risk shall not be deemed to exist
C.You should keep your course and speed
D.You needn‟t take any action to avoid collision with any vessel

单项选择题（）may be laid ready for the cargo or may just be put in bundles ready for the stevedores to lay out as the cargo is loaded.

A.Wedge
B.Dunnage
C.Shore
D.Store

单项选择题All the following equipment can be used to identify the position of the vessel in distress except（）.

A.AIS
B.LRIT
C.VDR
D.GPS

单项选择题（）means a structured and documented system enabling company personal to implement effectively the company safety and environmental protection policy.

A.SMS
B.ISM
C.SOLAS
D.SMC

单项选择题The equatorial current flows to the（）

A.east
B.northeast
C.southwest
D.west