A.repair
B.to repair
C.repairing
D.repaired
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A.at
B.for
C.in
D.to
A.at
B.in
C.on
D.by
A.in
B.up
C.on
D.over
A.whom
B.what
C.which
D.where
A.tightly
B.closely
C.securely
D.strictly
最新試題
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Bales close to the deckhead should be covered to prevent（）.
A tide is called diurnal when（）.
When steering by autopilot,how often should the steering be checked?（）
Full details of all lights and fog signals are shown on（）.
The helm command PORT TWENTY means（）.
It is dangerous for vessels without the operational radar（）the estuary.
Which of the following shall not the officers in charge of the navigational watch do?（）
The circulation around a low pressure center in the Northern Hemisphere is（）.
In the Northern hemisphere northerly winds may cause temperature（）.