Nooneknowsexactly（确切地）whenjazzwasinvented,orbywhom.Bu...
问题详情： Nooneknowsexactly（确切地）whenjazzwasinvented,orbywhom.Butitissaidthatitbeganintheearly1900s.Jazzwasanewkindofmusic,forAmericaandtheworld,andNewOrleanswasitsbirthplace. Whowerethejazzpione...