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

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

3???????

4?????

5??????

?2???????2? (?? ?????????)2??????2??????,???,?????????????????,?,????????,????????

????????,??????????????????????

??????????????????,??????????2??????1?????,??,?????2???????????2???,??????,?,???,????????????

?????????????,2??2??,??,??????????S2??????G5???????????G4215???????????????????,??????????????????,G42??

?,?????????????????????,????24????????,??????????“?????????????????”??????,????????????????????????????????????,??

??,????????,??????????,?????????????????????????????,?????????,???????,???????????????????????,???????????????????????????????????,??????????????,???????????????,???(????)

?????????:?????????????????