問題詳情
13. An asteroid revolves around the Sun with a perihelion 0.5 AU and an aphelion of 7.5 AU. What is itsperiod of revolution? Knowing that lAU is the average radius of the Earth orbit around the Sun
(A)4 years
(B) 8 years
(C) 16 years
(D)32 years
(E)64 years
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增