A.chief engineer B.sanitary officer C.second engineer D.third enginer
单项选择题港务局()
A. port state B. port area C . port control D. port authority
单项选择题松出()
A. slack away B. take in C. hold on D. let go
单项选择题装卸工人()
A.foreman B.linesman C.surveyor D.stevedore
单项选择题海关官员()
A. customs officer B. chief officer C. immigration officer D. second officer
单项选择题旗()
A.flight B.fly C.fire D.flag