3、演讲的主旨是()。YibinCityCitytracktrafficplanningisYibincityregionalrangewithintracktrafficsystemofonceintegration,andcitytracktrafficalsoisYibinCityCityintegratedtracktrafficsystemintheofpart,foraccurategraspcitytracktrafficresearchofobject A.革新、责任、合作:亚洲寻求共同发展 B.共同创造亚洲和世界的美好未来 C.一花独放不是春,百花齐放春满园 D