A.temperature B.dew point C.wind velocity D.relative humidity
A.Given only to TV stations B.Transmitted only by commercial broadcast stations C.Broadcast in plain language D.Broadcast immediately on VHF Channel 16 and 2182 kHz
A.fluctuates B.remains the same C.remains the same,with clouds forming rapidly D.rises,often quite rapidly,with clearing skies
A.from B.on C.in D.of
A.hydraulic current B.rectilinear current C.rotary current D.harmonic current
A.conduction fog B.radiation fog C.frontal fog D.advection fog
A.cirrus B.cirrocumulus C.altostratus D.cumulonimbus
A.West or northwest B.Northeast C.Southeast D.North
A.Gale B.Storm C.Hurricane D.Typhoon
A.ahead and equal to the ship's speed B.astern and equal to the ship's speed C.ahead and equal to twice the ship's speed D.astern and equal to twice the ship's speed