[填空题]
Eclipses happen on Earth b, 2qsx1po q o7/j+j4i qah1obxecause of an amazing coincidencey 86/sqlengd7p (f,j c. Calculate, using the information inside the Frontjfs (n8,pc6qdy7 g/ le Cover, the angular diameters (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$