问题

A body can only be observed at lower t

A body can only be observed at lower transit when（）.

Athe declination is the opposite name to the latitude
Bthe algebraic sum of the colatitude and declination exceeds 90
Cthe observer is in high latitudes above either polar circle
Dthe body is circumpolar

参考答案

参考解析：

分类：天文航海题库

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