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

2?????

3???90????????

4????????

5??????

???2????17?????????????????? (????)??17????????????????,??«??»??????,«?????»(1982??)?????????????????????????

???????????????????21????????????????,?????????????????????“Z?”?????????????????????,2200???????????????????89%?

?????????????????,?:«?»(1982??)????????????«??????????????»?«????????????????????»(1994??)?????,??????,??????????????????

????????????????????,«?????»???????????,????,???????????«????:??????????????»?????????????????

?????????????21????????????????????????????,?????1800???????,?????2??????????????????,?????,??????????,???????????(???) ??????????:????