单项选择题
The range of a light on Admiralty Charts is normally the（）.
A.nominal range B.luminous range C.geographical range D.visible range
单项选择题 The height of a tide can be increased by（）.
单项选择题 Steam smoke will occur when（）.
单项选择题 Section V of the ADMIRALTY NOTICES TO MARINERS is（）.
