?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???(?????????) ?????:?? ??“????????”

?? ?????????? ??????5.4?

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

2????????v

3???????vx

4?????????

5????????wx

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