Manyoftheworld’scountrieshavereachedorareapproachingz...
问题详情: Manyoftheworld’scountrieshavereachedorareapproachingzeropopulationgrowth(ZPG).Nearlyallsuchlandsareeconomicallywelldeveloped.TheyincludemuchofEurope(includingRussia),theUnitedStates,Canada,Jap...