题目
平角等于 【 】;周角等于【 】 ;1°=【 】′,1′=【 】°;1′= 【 】′′;1′′=【 】′
提问时间:2020-10-30
答案
平角等于 【180° 】;周角等于【360° 】 ;1°=【60 】′,1′=【1/60 】°;1′= 【60 】′′;1′′=【1/60 】′
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