VisitingJoshuaTreeNationalPark,CaliforniaJoshuaTreeNati...
問題詳情：VisitingJoshuaTreeNationalPark,CaliforniaJoshuaTreeNationalParkisnearly800,000acreslargeandsurroundspartsoftheMojaveandColoradoDesertsinSouth-centralCalifornia.Althoughbarrenatfirstglance,thep...