单项选择题
If you are sailing from the East Coast of the United States to the Caribbean Sea，which publication would contain information on weather，currents，and storms?（）
A.Sailing Charts of the Caribbean Sea B.Pilot Charts of the North Atlantic C.Light Lists，Atlantic and Gulf Coast D.Tidal Current Tables
单项选择题 If the current and wind are in the same direction，the sea surface represents a wind speed （）.
单项选择题 If the current and wind are in opposite directions，the sea surface represents（）.
单项选择题 If help has not arrived in 10-12 hours after abandoning a vessel in a rescue boat，you should （）.
