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

2???????200??500

3????????

4???????????

5???????

??????7???????5?? (???? ????)?5????,«???????????????????????????»(????«???»)????,??????????,????12????

????????????«??»??20??????,??????????????????????????????????????,????,??,??????????

????????????????????,«????»????,???????????????,???????1??????????????????(????,?????????????????)??????,????100???????????,?????????????????????????????????

??????????,«?????????»???,??????????????????,??????????5??100??(??),?????2%????;?????????100??????????,?????5%???

????12???,????:???????????????????????????????????????????????????????????????????????????????????????(????????) ????:??????????