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單項(xiàng)選擇題

The range of a light on Admiralty Charts is normally the（）.

A.nominal range
B.luminous range
C.geographical range
D.visible range

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單項(xiàng)選擇題

The height of a tide can be increased by（）.

A.A storm surge
B.A high pressure area
C.The jet stream
D.A cold front

單項(xiàng)選擇題

Steam smoke will occur when（）.

A.Extremely cold air from shore passes over warmer water
B.Warm dry air from shore passes over cooler water
C.Cold ocean water evaporates into warm air
D.Cool rain passes through a warm air mass