The error in a sextant altitude caused by refraction is greatest when the celestial body i

职业资格 已帮助 人

The error in a sextant altitude caused by refraction is greatest when the celestial body is ().

A.high in the sky

B.near the horizon

C.rising

D.at or near transit

请帮忙给出正确答案和分析,谢谢!

热搜:a股份有限公司以下简称a公司