单项选择题
A. tell me the way to B. have a rest C. see a doctor D. introduce myself
检疫官员（）A.chief engineerB.sanitary officerC.second engine...
单项选择题检疫官员（）
A.chief engineer B.sanitary officer C.second engineer D.third enginer
港务局（）A. port stateB. port areaC . port controlD. port a...
单项选择题港务局（）
A. port state B. port area C . port control D. port authority
松出（）A. slack awayB. take inC. hold onD. let go
单项选择题松出（）
A. slack away B. take in C. hold on D. let go
