12????21???,??“????????????????????????????????”????????????????????????????“??????”?????????,??????“??????????????”?

?,??????????????,??????????,???????????????????,?????????????1:1???????????????

????,???????????????7????6??,?????????????,??????????

??,?????????????35???????????????????????????????,???????????????,???(?????)

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

“???????”_????

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

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

2??????

3?????????vx

4??????????

5???????

12????21???,??“????????????????????????????????”????????????????????????????“??????”?????????,??????“??????????????”?

?,??????????????,??????????,???????????????????,?????????????1:1???????????????

????,???????????????7????6??,?????????????,??????????

??,?????????????35???????????????????????????????,???????????????,???(?????)

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