???????????? ?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??(???) ????????????:??