单项选择题
Generally，you can best keep a vessel under steering control when the vessel has（）.
A.Headway
B.Sternway
C.No way on，with engines stopped
D.No way on，with engines full ahead
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Generally speaking，the most favorable bottom for anchoring is（）.
A.Very soft mud
B.Rocky
C.A mixture of mud and clay
D.Loose sand -
单项选择题
During an annual FCC inspection（）.
A.All required documents and publications may have to be produced
B.Licensed GMDSS radio operators may be required to demonstrate equipment competencies
C.All required equipment must be fully operational
D.All of the above -
单项选择题
Downwind for 1 miles，alter to starboard 90 degrees，go down this course for 1 mile；Then alter 90 degrees to starboard and go down this course for 2 miles；Then alter 90 degrees to starboard and go down this course for 2 miles；Keep adding 1 mile ever time you alter to starboard．This operation is（）search pattern
A.Williamson Turn
B.Parallel
C.Sector
D.Expanded
