????????????1????????17???????????????????????(??????????????? ?????????)??,?????????????????????????????????????,?????,?“???????????”???????,????,???,???“??????????”???????????

?????????,????????,?????,??????????????49????????,????“???????,?”??????????????????,?????,????????,???????,??200?????

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

????,?????????????,“????????????”???????????????????????,??????(?????)??????????????(???????)??????????????????????,??????“??????????”,?????????,??????????????“??”???????????????????????????,??????,????????????????“?????”?“???????????”?“?????????”????,???????,?????????????????

??????,?????????????????“??????????????(??????????????)”,???????????????,???????,????,????????????;????,??????,??????????,?????????????????,???????????????????,????(??) ????????:??????? “???????”????

?? ????:???????“???????”

????:1????????:????vx

2?????????

3???????

4?????

5?????????

????????????1????????17???????????????????????(??????????????? ?????????)??,?????????????????????????????????????,?????,?“???????????”???????,????,???,???“??????????”???????????

?????????,????????,?????,??????????????49????????,????“???????,?”??????????????????,?????,????????,???????,??200?????

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

????,?????????????,“????????????”???????????????????????,??????(?????)??????????????(???????)??????????????????????,??????“??????????”,?????????,??????????????“??”???????????????????????????,??????,????????????????“?????”?“???????????”?“?????????”????,???????,?????????????????

??????,?????????????????“??????????????(??????????????)”,???????????????,???????,????,????????????;????,??????,??????????,?????????????????,???????????????????,????(??) ????????:???????