单项选择题
A.rain must develop B.fog may form C.it begins to snow D.water freezes
As the temperature of an air mass decreases，the（）.A.abs...
单项选择题As the temperature of an air mass decreases，the（）.
A.absolute humidity decreases B.relative humidity increases C.specific humidity decreases D.dew point rises
As the South Equatorial Current approaches the east coa...
单项选择题As the South Equatorial Current approaches the east coast of Africa，it divides with the main part flowing south to form the warm（）.
A.Agulhas Current B.Canary Current C.Benguela Current D.Madagascar Current
As seen from the tow，what should connect the leading en...
单项选择题As seen from the tow，what should connect the leading ends of both towing bridle legs to the main towing hawser?（）
A.A cable clamp B.A fishplate，flounder，or towing plate C.A pad eye D.The towing bitts
