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