??????????????11????23??? ???,????22????,??,??,????????????,???????

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

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

???????????????????,??????????21???????,?????????,??“??”???????????????? ???????????:??? ??“?????????”????

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

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

2??????

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

4?????vx

5?????

??????????????11????23??? ???,????22????,??,??,????????????,???????

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

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

???????????????????,??????????21???????,?????????,??“??”???????????????? ???????????:???