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

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

3???????

4?????

5????????v

???????????????????12???????21???????????? (??????? ???????)????????????????“????????????????????????????”???????????????19??????

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

12???19?,?,?????????? ??? ??????

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

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

????????????? ????? ?????

????????,????????????100??????????????????????????,?????????????????,???????????,????(???????????)

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