??10???31??????????? (? ?)????????????10???????????????31?????????

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

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

????????????:?????????????????????? “?????????”_????

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

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

2?????????

3???????

4??????????

5??????vx

??10???31??????????? (? ?)????????????10???????????????31?????????

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

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

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