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

2???????

3?????????

4?????

5????51?????

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