????:1?????1000:????

2????????

3???????

4??????

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

12??????????1????????????????????,????,???,??,????,???“???????????????????”????????????????????,????“????????????”???????

?????????,????,?????,?????,??;??????????????????????????????????????????????????????????,?,????????,????,?????

?????12?????????20???

(???? ????????? ??? ????)

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