单项选择题

A slow，gradual fall of the barometer indicates approaching（）.

A.gale force winds within 12 hours
B.blizzard conditions
C.deteriorating or unsettled weather
D.heavy，wind driven rain

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单项选择题

A.rainy weather for the next 48 hours
B.high seas
C.improving weather conditions
D.deteriorating weather conditions

单项选择题

A.seawater temperature
B.engine temperature
C.dry bulb and wet bulb temperatures
D.barometric pressure

单项选择题

A.Shift weight to the bow
B.Shift weight to the center of the boat
C.Shift weight to the stern
D.Throw excess weight overboard