单项选择题
A.be secured B.be sincere C.be simulated D.be signature
The period of your（）onboard the vessel as Captain is 8 ...
单项选择题The period of your（）onboard the vessel as Captain is 8 months from the date of your flight if you are joining a vessel outside the country.
A.tenure B.during C.procedure D.secure
The most common method of securing a line to a cleat is...
单项选择题The most common method of securing a line to a cleat is a（）.
A.half hitch，then round turns B.round turn，then figure eights C.figure eight，then round turns D.figure eight，then half hitches
The lashings of a stack of containers with interlocking...
单项选择题The lashings of a stack of containers with interlocking fittings restrain the forces that cause（）.
A.toppling B.racking C.buckling D.crushing
