[填空题]
Eclipses happen on Ear s(4n,vuuhkft)jk0j0 th becaus -heurzy- uzd7 (4ca+re of an amazing coincidence. Calculate, using the information iu u4crr -h7(+a-ydez znside the Front Cover, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$
Post time 2025-2-18 20:00:22
