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

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

3???????

4?????szsn?????

5????????

????12??28???(???? ?????????????????)28??????,“????????????2000”??,?????????????

12?28?,???????????,“?2000”??????

“???2000”??,??136?????????????????????????????53??????10?,??????8????????????????????,?????,???????????80???????????????????????

????????????,?2000?,?20??,??????????????????????????

???,?,?????95%,?????(?)

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