摘要
Thefamousphysicistmadeforhisscholarsthisriddle.Afellowencounteredabearinawasteland.Therewasnobodyelsethere.Bothwerefrightenedandranaway.Fellowtothenorth,beartothewest.Suddenlythefellowstopped,aimedhisguntothesouthandshotthebear.Whatcolourwasthebear?
出版日期
2005年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)