???18??,????????????,??20?????????????“??”???????

????????:“?20?,?????(??)????????????”

?????1980?????4??????,?????

??????????????,?20????,?????????????????????“???”,???????????????????,?????“??????????????”?“????????????????????????”?

????,“???(?)??????”,??“?????????????????????????????”,“????????”? ?????????????:????????? ??“????????????”????

?? ??????“?????”???????:?????

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

2???????

3????????????

4???95?

5??????????

???18??,????????????,??20?????????????“??”???????

????????:“?20?,?????(??)????????????”

?????1980?????4??????,?????

??????????????,?20????,?????????????????????“???”,???????????????????,?????“??????????????”?“????????????????????????”?

????,“???(?)??????”,??“?????????????????????????????”,“????????”? ?????????????:?????????