??
??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??????(??????) ???????:??
?????????
????????????????? ????5.6??????????????