????:1???????:????7939

2??????????

3??????

4??????

5???150?????

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

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

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

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

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