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

2??????????

3?????????????

4???????

5???????

????6?????23? (??? ??)????23??4.9?????????,??????????????

??,6????????23?22?27?????,??????????(?????????23.84???,??121.71?)???4.9??,???????????19??

??,?????????????????????????,??,??????????,???(?)

??:???