单项选择题
A.Ship security office B.Ship security officer C.Ship security operator D.Ship safety office
（）provides a selection of commonly used routes with the...
单项选择题（）provides a selection of commonly used routes with their distances between principal and important positions.
A.The Mariner‟s Handbook B.Admiralty Sailing Directions C.Ocean Passages for the World D.Mariner‟s Routeing Guide
Which of the followings does not belong to main maneuve...
单项选择题Which of the followings does not belong to main maneuvering facilities?（）
A.rudder B.propeller C.radar D.sider thruster
There shall be（）into sleeping rooms from cargo and mach...
单项选择题There shall be（）into sleeping rooms from cargo and machinery spaces or from galleys,storerooms,drying rooms or communal sanitary areas.
A.no direct openings B.direct openings C.no more than one direct opening D.up to one direct opening
