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

2??????????

3?????????

4????????

5???????

??10??????????14? (? ?????)???,14???????????????21???17???,???????5.0??????????????

???24.2?????121.84??????????,???31.8???;??20.5????

???:???????4??????????????,????????????3?,????????????????????????????????????2??,???????????1??

?,??4.1??

??,???????

???,??????????????????????????????????

??,????

????????,?19??20???,?4.4??????????(???????) ??????:???