A.Try B.Adjust C.Notice D.Operate
单项选择题I shall keep the﹙保安巡逻)() .
A. coast patrol B. inshore patrol C. patrol service D. security patrol
单项选择题Where are(危险货)()carried on board?
A. dangerous goods B. safe goods C. A or B D.A+B
单项选择题It shows mourning when you lower()(半旗).
A. half-mast B. dip the mast C. flag line D. flag mast
单项选择题rise()
A.上涨 B.下降 C.大米 D.稻谷
单项选择题quarantine officer()
A.检疫官员 B.海关官员 C.卫生官员 D.港务局长