单项选择题
Above-normal tides near the center of a hurricane maybe caused by the（）.
A.high barometric presure B.jet stream C.storm surge D.torrential rains
单项选择题 According to the customs of this port, the work of opening and closing hatch covers is done by（）.
单项选择题 Advise（）your fishing gear.
单项选择题 After abandoning ship, you should deploy the sea anchor from a life raft to（）.
