单项选择题
A. coast patrol B. inshore patrol C. patrol service D. security patrol
Where are（危险货）（）carried on board?A. dangerous goodsB. s...
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
It shows mourning when you lower（）(半旗).A. half-mastB. d...
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
rise（）A.上涨B.下降C.大米D.稻谷
单项选择题rise（）
A.上涨 B.下降 C.大米 D.稻谷
