??
??????????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?????????????????????????