once a day
once a week
every minute
every 30 minutes
第1题：
When steering by autopilot, how often should_______steering be checked?
A.every day
B.when time allows
C.At least once a watch
D.No checking is necessary
第2题：
Admiralty Notices to Mariners are published ______.
A.every day
B.every week
C.every month
D.every year
第3题：
A.once a week
B.twice a week
C.once two week
D.once a day
第4题：
When must the Master or person in charge of a ship log the position of load line marks in relation to the surface of the water in the logbook?
A.Once a day
B.At the change of every watch
C.Only when in fresh or brackish water
D.Prior to getting underway
第5题：
When are fore and aft draft readings required to be entered in the unofficial logbook of a ship?
A.Once a day
B.Once a week
C.Prior to getting underway
D.Only when entering waters of different density
第6题：
A:What does your mother do? B:( ).
A. She does shopping once a week
B. She tells stories to my daughter every evening
C. She is a clerk in a bank
第7题：
When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?
A.Once a day
B.At the change of every watch
C.Only when in fresh or brackish water
D.Prior to getting underway
第8题：
A. above
B. below
C. at
D. on
第9题：
If your passenger vessel is fitted with a loudspeaker system，it must be tested at least once ______.
A.every week
B.a day
C.every trip
D.a watch or once a trip，whichever is shorter
第10题：
每月一次（）