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

2???????

3?????????

4?????????100?????

5??????

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

????????,??????????????????,?????????????,???????80???????100???????????????,????????????????,??,??????????????????????????40%???????????

???????????????????????,???????????,?????????????????,????????????40???????,??????60%???????,????????,?????????“???????????????”????????

???????????????????,??,???????????????,??????,????????,???????????????????5????????,???????????200???

????????????????????,??????????????????????,?????????????,??,?????,?????,???????????? ????????:?????????