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