A.at all times
B.in the bottom return mode
C.in the volume reverberation mode
D.only when there is no current
您可能感興趣的試卷
你可能感興趣的試題
A.heavy
B.easily damaged
C.affected by temperature
D.costly relative to the strength ratio
A.stopper
B.screen
C.filter
D.restrictor
A.rising warm air
B.proximity to a low pressure area
C.inward spiraling circulation
D.clear dry weather
A.Has there been
B.Have there been
C.Has there
D.Have there
A.From
B.By
C.on
D.With
最新試題
A fire is discovered in the bow of your vessel while making way. The wind is from ahead at 35 knots. You should（）.
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use? （）
A helmsman receives the command “Right 15 degrees rudder.”The helmsman’s IMMEDIATE reply should be（）.
It is not necessary to declare（）in MARITIME HEALTH DECLARATION.
A fishing vessel casualty must be reported to the Coast Guard if it involves（）.
A frame with two，or sometimes four，arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the（）.
A large basin cut into the shore，closed off by a caisson，and used for dry docking of ships is known as a（）.
A fishing vessel displaying the lights shown is（）.
After sending a message describing the symptoms of an ill crew member，you receive a message containing the code MRL. This means（）.
Between 1830 hrs and 1850 hrs this day，strong gusty winds（）by my vessel，in consequence of which the vessel’s four mooring lines were broken.