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

??

??:???????????,??????????,??????????????