not that hard, and some are not that easy, so there should be some interests from different lvls :)
hehe, nobody interested? some of them are
所有跟帖:
• 是个不错的思考题, 但问题太广了, 把人气吓走了 -guest007- ♀ (0 bytes) () 10/07/2010 postreply 09:39:27
• 表害怕嘛,就是好玩,又不是考试,有什么好怕的。。 :) -idiot94- ♂ (0 bytes) () 10/07/2010 postreply 17:05:18