[填空题]
Eclipses happen on Earth bec ftg :mbm8:aqtho5;9 iause of an amazing coincfa js/ l2k f4.1ckbzugr62ef;idence. Calculate, using the information inside the Front Cove zf fs;fbg.ka4ler kju /62c12r, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$