单项选择题
In low latitudes，a first quarter Moon will always rise at about（）.
A.sunrise
B.1200 LMT
C.sunset
D.2400 LMT
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相关考题
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单项选择题
In general，the most effective period for observing stars and planets occurs during the darker limit of（）.
A.sunset
B.civil twilight
C.nautical twilight
D.astronomical twilight -
单项选择题
Elongation becomes zero at（）.
A.opposition
B.west quadrature
C.apogee
D.inferior conjunction -
单项选择题
During one synodic rotation，a body makes one complete turn relative to the（）.
A.Earth
B.Sun
C.stars
D.vernal equinox
