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

2???????300????

3?????95?

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