复制与粘贴中的数学.?8?!?3?9?5?.?64?9?!?64?9?:=18446744073709551616.?2?9?:?9?7?0?k?5?.?64?9?A4?1?9?9?7?l?)?5?5?9?E?!1?A4?(?5?)?1716?.18446744073709551616-1716?.10749850858805100(?).?60Etm(1ftm=10-6m?9?17?1mm)?9?k?=?:10?6x60x10749850858805100?w644991051528(m)?G644991052(km).?7?300000kmls?9?:644991052-300000=2150(s).?7?4?6?0?500s?9?9?A?(?9?6?4?5?l.?5?w?!?l?9?)?0?260?200?G?9?9?)?40G?200G?9?=?3!?2007.9wMM