??????2??????????????2? (?? ??)??????????????(??????????????)?2??1????????????,????????

???,???2????????????1????,??,??

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

????2?1?,????????????????????????????????????????90%??

2?????????????2????????????????,??????????????????????????????,??????(????????????????????????????) ????????????????????:?????????????? “??????????”_?????

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

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

2???????

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

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

5?????????

??????2??????????????2? (?? ??)??????????????(??????????????)?2??1????????????,????????

???,???2????????????1????,??,??

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

????2?1?,????????????????????????????????????????90%??

2?????????????2????????????????,??????????????????????????????,??????(????????????????????????????) ????????????????????:??????????????