  1 + 4 + N           
  
2019/7/9
          1 + 4 + N                     1+4+N                    4           300                                     1 + 4 + N                                                                                          
     
IE11 ᠪᠤᠶᠤ ᠪᠤᠰᠤᠳ ᠰᠢᠨ᠎ᠡ ᠬᠥᠲᠥᠴᠢ ᠶᠢ ᠠᠰᠢᠭᠯᠠᠭᠠᠷᠠᠢ