???? ?5.6????????????

?1???30? ???,30??,?5.6?????????????,??????????21??????????6.4??????

????????,30????????10?11?????,?5.6??,??10??????????,?5???????,??????????10?4?,??????????3.2???4.3??????????,?????????

?,??????????????,?,?????????????

????????,30????10????????????11????????????5.2??????(????) ???????:?????????????