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

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

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

4??????????

5??????????????

???11??22??????????????????? ?,???22?,?5.4??????????,???????“????”?

????,??????????22?18??45??20?22??20?40???20?43???????????21??????????29?,?20?????????????40???????5.4??????????,?23.2??????????120.18??????????,??23.2?,?????????7.7??????

???,??????,???????????????,????,??“???????????????????????”??,?????????

?,?????“?????”,??“????????????????”?

???,22??????????????????20????????40???????????????4.7??(??) ????:??????