[填空题]
Eclipses happen on Earth because op+ j0.yznwr e6f an amazing coincidence. Calculate, using th,si b/ l43rv 2,cngp00sbnvkb4mp,qb e information inside the Front Cover, the angular diameters (in radians) of the Sun and the Moon, as seen on Eartvb0s,4m0pns 4 ipq bkc g/3 vb,nr,2blh. Sun = $rad$ Moon = $rad$
Post time 2025-2-18 20:00:22
