??,?????????7?17??8?,?,???????????????????????????????????????????????????????????81??,????????????????????????????3??????????????

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

????????1??,???

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

?????????????,????????????????24??(7?17??????????8?18??????8?),??,???????????????????????????,??,???

??2448??(7??????????18??????8??19?????8??),?????????????????????????,??,??

7????????16?,????????2??????????????,????????????

??,????????????2??????????????????????????????????????????????????????????????8?????

(?????????? ???) ????????????????????????:??????? “??????????”_????

?? ???:9?81????????????

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

2?????

3???????

4???????

5???????

??,?????????7?17??8?,?,???????????????????????????????????????????????????????????81??,????????????????????????????3??????????????

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

????????1??,???

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

?????????????,????????????????24??(7?17??????????8?18??????8?),??,???????????????????????????,??,???

??2448??(7??????????18??????8??19?????8??),?????????????????????????,??,??

7????????16?,????????2??????????????,????????????

??,????????????2??????????????????????????????????????????????????????????????8?????

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