[填空题]
Eclipses happen on E u11gdm+m 8w jrvj,/c o/vref:arth because of an amazing coip q1a ;-d)1reest-z q7qrpu2xncidence. Calculate, using the information inside the Front Cover, the angular diamet;q-qzpd21 -ae 1q7xt)rerp s uers (in radians) of the Sun and the Moon, as seen on Earth. Sun = $rad$ Moon = $rad$
Post time 2025-2-18 20:00:22
