????:1?????:??????wx

2?????ppt

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

4??????????

5?????????

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

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

????????? ??????

??,?????????????????,???????1?????????????,?????????????????,?????

“??????????????????????????????”?

??????????????????“??”????????????

??,????3A??????????????«????:???»??,?????????“??????”??????????,???????“??”?

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

??,?????

?800??????1996????????????,???“??????????????????”?

?????? ??????

?????????,??????????30??????,????????????“??????????”“??”“????”“??????????”“????”“?????”“??”??,??3.5??????,????????????6??,???????????????????10?????????????????

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

????? ??

??,?????,???,???,????????,???......????????,????????????,????,??????,??

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

????????????????????? ?????

??????“????????”???“????????”

??????????????????????????“????????”IP

???????????????????“??????????????????”

??????????

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

????

???

????“?”???????????“?????”????

?????? ?????????????

??,600?????????,?????????????????????,?4????,??????????????????79.9?,???????40??????????

“??,???????,???,???”??,???,?????????13??????????????,????????????4.5????????5????

???????????? ???

???

??????????????“??+”????????????????????

“??????????????”

“???????‘??’‘??????’???,????????????????????,?IP?”????

??????????? ?????????????? ???

?????

??????????“??”

????

“??‘??????’?????”???,????,??????????“???”??????????30???

??????????????“?????????????????????????????????,?????????????????,????????????‘??????????’?”???,?“????”,???????

????????????? ????????

?????????

??????????????“????”?????

?????????????????

??????????????

????

??????????????????? ???????

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

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

???? ????????

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

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

????????

???????

?“????”????????????

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

???:???

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