单项选择题
A.take out B.pick up C.stretch out D.draw out
AVAST means（）.A.let goB.pullC.slack offD.stop
单项选择题AVAST means（）.
A.let go B.pull C.slack off D.stop
A SEA ROOM TO BE KEPT FOR SAFETY AROUND A VESSEL，ROCK，P...
单项选择题A SEA ROOM TO BE KEPT FOR SAFETY AROUND A VESSEL，ROCK，PLATFORM，ETC.，OR THE PLACE ASSIGNED TO A VESSEL WHEN ANCHORED OR LYING ALONGSIDE A PIER，ETC means（）.
A.Port B.Commercial area C.Berth D.Roadstead
A METHOD OF TOWING VESSELS THROUGH POLAR ICE BY MEANS O...
单项选择题A METHOD OF TOWING VESSELS THROUGH POLAR ICE BY MEANS OF ICEBREAKING TUGS WITH A SPECIAL STERN NOTCH SUITED TO RECEIVE AND HOLD THE BOW OF THE VESSEL TO BE TOWED defines（）.
A.Towing operations B.Rigid coupled towing C.Close coupled towing D.Hard coupled towing
