单项选择题
A.District Commander B.Commandant C.Captain of the Port D.nearest Coast Guard office
Apparent wind speed blowing across a ship under tow can...
单项选择题Apparent wind speed blowing across a ship under tow can be measured by a(n)（）.
A.barometer B.wind vane C.anemometer D.thermometer
Apparent time is based on（）.A.a fictitious sun moving a...
单项选择题Apparent time is based on（）.
A.a fictitious sun moving along the celestial equator B.the visible sun moving along the ecliptic C.the Moon's motion in relation to the Sun D.the movement of the first point of Aries
Aphelion is the point where the Sun（）.A.and Moon and Ea...
单项选择题Aphelion is the point where the Sun（）.
A.and Moon and Earth form a right angle B.and Moon and Earth are in line C.crosses the celestial equator D.is farthest from the Earth
