相关考题
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单项选择题
（）tankers over 100 meters long must not proceed beyond Dongbei Buoy.
A.Loading
B.Load
C.Lade
D.Laden -
单项选择题
International distress signal in VHF calling for help is（）.
A.Help，Help，Help
B.Mayday，Mayday，Mayday
C.Save，Save，Save
D.Rescue，Rescue，Rescue -
单项选择题
There are salvage operations（）position 120.0N 12.5E.
A.on
B.at
C.in
D.above
