7-8-3 ᠰᠠᠬᠠᠷᠠ ᠠᠴᠠ ᠡᠮᠦᠨᠡᠰᠢᠬᠢ ᠠᠹᠷᠢᠺᠠ ᠲᠢᠪ᠂ ᠰᠦᠬᠡᠪᠠᠭᠠᠲᠤᠷ .pptx
,, 1970 12 1989 8 , , , , , , , , , , ,,, ,,, ,,, , 90% , , ,,, ,,, , , , ,,, , , , , , , , %,2005 - 2010 , 2.3% , ,,,,,,2.8,3.8,3.2,2.6,3.9,,,,, ,,A ,B ,C ,D ,E ,F , ,E,D,F,A,B,C,