单选题Opposition occurs when（）.Athe Sun，Earth，and Moon are at right anglesBthe Sun's declination is 0°and is moving southCan inferior planet is at the maximum angle to the line of sight to the SunDthe Earth is between a planet and the Sun
单选题
Opposition occurs when（）.
A
the Sun，Earth，and Moon are at right angles
B
the Sun's declination is 0°and is moving south
C
an inferior planet is at the maximum angle to the line of sight to the Sun
D
the Earth is between a planet and the Sun
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