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單項(xiàng)選擇題

Capella is found in what constellation? （）

A.Gemini
B.Auriga
C.Libra
D.Crab

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單項(xiàng)選擇題

Because the actual center of some planets may differ from the observed center，the navigator applies a correction known as the（）.

A.phase correction
B.refraction correction
C.semidiameter correction
D.augmentation correction

單項(xiàng)選擇題

As observed from the Earth，the angle between lines from the Earth to the Sun and the Earth to an inferior planet is known as（）.

A.elongation
B.conjunction
C.opposition
D.quadrature

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