单项选择题
A.only the sternlight of the vessel B.a sidelight and one masthead light of a vessel C.only a sidelight of the vessel D.any light except the masthead lights of the vessel
The temperature at which the air is saturated with wate...
单项选择题The temperature at which the air is saturated with water vapor and below which condensation of water vapor will occur is referred to as the（）.
A.precipitation point B.vapor point C.dew point D.absolute humidity
Foul ground（）2 cables fromits E side.A.locatesB.liesC.e...
单项选择题Foul ground（）2 cables fromits E side.
A.locates B.lies C.extends D.rests
Top and inner graduated borderlines of the chart are（）....
单项选择题Top and inner graduated borderlines of the chart are（）.
A.scales of latitude B.scales of longitude C.compass rose D.source data
