[填空题]
Eclipses happen on Ea k 8d1 :pj(ui2s;zjpjarth because of an amazing coincidence. Calculate, using thepa2k1u j s;:pijjz(8d.tgz 17fxe) mw information inside the Front Cover, the angular diameters (z t1w7 e.x)mgfin radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$
Post time 2025-2-18 20:00:22
