AntarcticaisthesouthernmostplaceonEarth,anditislargerth...
问题详情：AntarcticaisthesouthernmostplaceonEarth,anditislargerthantheUnitedSatesand95%ofitiscoveredwithice.Theiceis5kilometersthickatplacesanditnevermelts.Atleastthatiswhatwethought,butletuskeepitthatw...