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

2?????

3???????

4?????

5???????

?8???????????????16??? (???????????? ???)???????????????????????16????????????

???8??16??????????????????,??????????????16?????????? ????????? ????????

??????????????,??????????????,???????,???????????????18???

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

??????????,?????????????,????????,???“??????”????,??????????,??????,??????????????????????50??,????????,????????????1972?1.13??????3000?????????????????????,???????????????1973?????5????????19??,?????20????????????

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

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

????????????????????????????,??????????,???,????????????????????????????20?????????

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

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