单项选择题
A.Moon being at its maximum declination
B.Moon crossing the equator
C.Sun and Moon both being near 0°declination
D.Moon being at perigee
单项选择题 To make sure of getting the full advantage of a favorable current，you should reach an entrance or strait at what time in relation to the predicted time of the favorable current?（）
单项选择题 Tide is（）in direction ENE.
单项选择题 The winds with the greatest effect on the set，drift，and depth of the equatorial currents are the（）.