????:1???????:?????????

2???????????

3????????

4?????????

5?????

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