A.does not change
B.improves rapidly
C.improves only slightly
D.becomes poor
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A.stop
B.to stop
C.stopping
D.stopped
A.you recovery
B.you recover
C.you recovering
D.you recovered
A.Weekly Editions
B.Quarterly Editions
C.Annual Editions
D.Monthly Editions
A.every day
B.every week
C.every month
D.every year
A.more slack in the mooring lines
B.a strain on the mooring lines
C.chafing gear on the mooring lines
D.grease on the mooring lines
最新試題
The best estimate of the wind direction at sea level can be obtained from observing the direction of the（）.
What is the most important source of information to be used in correcting charts and keeping them up to date（）.
Periodic publications notifying changes in，or additions to，previously published navigational data are（）.
Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer（）.
RYUKYU S TO SE 6 BEC 4－5.ISOL SHWRS.SEA 3 M BEC 2 M.SWELL SE 3－4M.This description is likely to be under the heading of（）.
Navigational warnings and weather bulletins for shipping（）from Singapore Radio.
The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
Many navigational warnings are of a temporary nature，but others remain in force for several months or may be succeeded by（）.
Steam smoke will occur when（）.
（）is the system for the broadcast and automatic reception of maritime safety information by means of narrow-band direct-printing telegraphy.