单项选择题
A.the work of using lines and chains to secure the cargo on board
B.the lash work
C.the work of putting dunnage，keeping the cargo in position and not move when the ship is rolling and pitching
D.the lashing work
单项选择题 On my last voyage it（）at the discharging port that some watches were pilfered．
单项选择题 My ship is（）No.5 Berth for loading．
单项选择题 MV ATLANTIC AT 0205UTC A BLACK FLOATING MINE WAS SIGHTED IN APPROX POSITION LAT 15.30N LONG 112.30E DANGEROUS TO NAVIGATION VESSELS IN VICINITY. According to this cable，the mine（）.