4、ktrafficresearchofobjectYibinCityCitytracktrafficplanningisYibincityregionalrangewithintracktrafficsystemofonceintegration,andcitytracktrafficalsoisYibinCityCityintegratedtracktrafficsystemintheofpart,foraccurategraspcitytracktrafficresearchofobject1.世贸组织是根据( B )回合谈判达成的协议建立的。A东京 B乌拉圭 C迪龙2.世贸