????:1?????:51pc·mc????

2???????

3???????

4???????

5????300?1????

???12?????????????????13???(???? ?)????????????????(????)?????12???????????????????????????????????,?????????????,??????

??????????????12????????12??????,???????????(??????????????????)???? ???????????????????? ???????????

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

??,12?12??????????????????????????????,???????????????“??”????????????????????????????????,?????????,???????????????????????“???”???,???????????????????????????????????,??,??????????????????????,?????????????????????,?,??????????????

??12?????????????????12???????????,???????????(????????)????????????????? ????? ????

????????????,????????“?”,??????????????,12?????????????,?????????,???????????????????????,?????

?????????????????12??????12??,??(???????)????????????????????????????????(?????????2)???(????????????1)???(?????1)???????????????????????(????2)?????????????????????????? ? ??????????

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

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

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