单项选择题
A.smaller scales B.larger scales C.smaller scales and larger scales D.moderate scales
Generally，（）are used as the track charts on the high se...
单项选择题Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．
A.Mercator charts／Loran charts B.Admiralty charts／Routeing charts C.large scale charts／small scale charts D.small scale charts／large scale charts
For what purpose would using a Lambert conformal chart ...
单项选择题For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?（）
A.Plotting radio bearings over a long distance B.Determining latitude and longitude of a fix C.Measuring rhumb line distances D.Measuring rhumb line directions
Fog is most commonly associated with a(n)（）.A.warm fron...
单项选择题Fog is most commonly associated with a(n)（）.
A.warm front at night B.low pressure area C.anticyclone D.lack of frontal activity
