單項(xiàng)選擇題The diurnal variation of pressure is most noticeable().

A.above the polar circles
B.in a low pressure area
C.during periods of low temperatures
D.in the doldrums


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1.單項(xiàng)選擇題The diurnal pressure variation is most noticeable in the().

A.polar regions
B.horse latitudes
C.roaring forties
D.doldrums

2.單項(xiàng)選擇題The daily recurring pattern of pressure changes most noticeable in low latitudes is the ().

A.daily lapse reading
B.diurnal variation of pressure
C.pressure tendency
D.synoptic pressure

5.單項(xiàng)選擇題Ships changing their location within the port limits are also required to report their new ().

A.bearings
B.distances
C.sections
D.positions