单项选择题
A“chock” is a（）.
A.deck fitting used to secure mooring lines B.casting fitted at the side of a weather deck，used as a fairlead C.sharp block of wood used to support hygroscopic cargo D.smoke pipe for the galley stove
单项选择题 （）is known as a long hatch during loading operation．
单项选择题 （）is just to put it（）and notify me as to where and how the cargo was damaged．
