????:1???668????:??????

2?????wx

3????????

4?????????

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

??????????12?18?????? (?? ????)??,????????????“??”?????????????????18????????????

????????????18????????????16?????13??????????,???19?,??7?9???????????9??10????7??8???9?????,?????7??9???????????9?????10???????6??????????????7??????????8?????9??,??????8???????9?????10?????????????11???7?????8?????????9?10???

???????????,?????????,?18??19?,??4.0??5.3???????,????????????????3.5??4.8??,????3.0???4.5??????;???????????????????2.3????3.3?????;??1.8??2.8?????

??12??,?????????????????,???????,?????????

??,??,??;???????,?(AIS)??????????,?,??,??,???????,?????????????????????(???????????????) ???:??