欢迎查询 |
|
| 备份档案： 当前 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | |
| 页次：1/1 每页50条记录， 本页显示1 到17， 共17 分页： [1] | |
| • #跟帖# 想了时间久了，脑子里只有有用的信息了，哈哈。 [脑筋急转] - longsky(0 bytes ) 2024-05-20 | |
| • #跟帖# Very nice! [脑筋急转] - longsky(0 bytes ) 2024-05-19 | |
| • #跟帖# 几何来了 [脑筋急转] - longsky(82 bytes ) 2024-05-18 | |
| • #跟帖# in both case, alpha = [脑筋急转] - longsky(366 bytes ) 2024-04-12 | |
| • #跟帖# 稍微改一下就好了吧？f(x)=0 for all irrational x, =1 for the rest; then [脑筋急转] - longsky(21 bytes ) 2024-03-21 | |
| • #跟帖# 无解 [脑筋急转] - longsky(0 bytes ) 2023-11-02 | |
| • #跟帖# check here. [脑筋急转] - longsky(228 bytes ) 2016-11-07 | |
| • #跟帖# 如果可以用计算器，三角函数可解；否则太麻烦。 [脑筋急转] - longsky(0 bytes ) 2016-09-02 | |
| • #跟帖# 证明 EFDG 以DE对称，则 X=30 角BDE=80 [脑筋急转] - longsky(82 bytes ) 2016-09-01 | |
| • #跟帖# 1/16 [脑筋急转] - longsky(0 bytes ) 2014-01-22 | |
| • #跟帖# 回复：小学生数学题 17 [脑筋急转] - longsky(259 bytes ) 2013-11-13 | |
| • #跟帖# 想看答案就进来 [脑筋急转] - longsky(90 bytes ) 2013-11-11 | |
| • #跟帖# 高。四点公园，角AOE=角HBF；HF=R*sin( [脑筋急转] - longsky(0 bytes ) 2013-11-07 | |
| • #跟帖# 三角答案 [脑筋急转] - longsky(625 bytes ) 2013-11-07 | |
| • #跟帖# 5. abc 正三角，d is outside abc. ad=ab=bc=ac, bd=cd [脑筋急转] - longsky(0 bytes ) 2010-04-08 | |
| • #跟帖# 回复：一平 面 4个点 几何形状 [脑筋急转] - longsky(165 bytes ) 2010-04-08 | |
| • #跟帖# explain the "70" [脑筋急转] - longsky(491 bytes ) 2010-01-18 | |
| 页次：1/1 每页50条记录， 本页显示1 到17， 共17 分页： [1] | |
| 备份档案： 当前 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | |