單項(xiàng)選擇題

A correction for augmentation is included in the Nautical Almanac corrections for（）.

A.the Sun
B.the Moon
C.Venus
D.None of the above

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單項(xiàng)選擇題

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

A.the declination is the opposite name to the latitude
B.the algebraic sum of the colatitude and declination exceeds 90
C.the observer is in high latitudes above either polar circle
D.the body is circumpolar

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