USAAAO2019
来自astro-init
Jingsong Guo(讨论 | 贡献)2020年3月7日 (六) 17:26的版本 (以“==预赛== 2019年USAAAO预赛选择题 == 决赛 == The maximum score is 153 points. The test must be completed within 2.5 hours (150 minutes). ===短问题=== 201…”替换内容)
预赛
决赛
The maximum score is 153 points. The test must be completed within 2.5 hours (150 minutes).