????:1????150????????:?????????

2??????

3?????vx

4???6???

5????????????

???????2?????14??????????????? (???? ???)?????????????????(???????)???????(????????????)??????????(??????????)14????,??????????,??????????????????????(?)?

?????,??????221.37?(22137239084??)???????????(???????58%)????????,?488.3????????????????????????????????????(48829977540????)??????????(??????????????71.55%)??????????????????????????????,??376.7?????(37670043600??)?????????????(?????????73.53%)???????

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

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