[填空题]
Eclipses happen on Earthaaic0*aehnyxv(mgg4a( u:e*e p9 dl 0ywu* /, becbit/.z eaow3;ause of an amazing coincidence. Calculate, using the information inside the Front Cover, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth ./iztb; w3eoa. Sun = $rad$ Moon = $rad$
Post time 2025-2-18 20:00:22
