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

2??????????

3?????300?2??

4??????

5????????

???,???????«??????????????»???(??????)???????100??????????????,??,?17???

??,???????«?????????»????????????1?29??????,???2????????4???8.6????;2??6????,????8??5?????;2??????7??,?67.9?????

??????????????????????? ?????????????:???,?«??2»??50%????????,??

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

?????????,????,«????????????»?????????57.2%??,?????????????????????????????????

?????????????????????? ??????????????:?,??136???,??«????2»??70%~80%?????????????,???,?80%~90%?«???2»??????????????1000~2000????????

??????????? ??????????:????,???????????,?????,????????????«????????????2»?????,??5??????????????

????????????? ???????????2??????????

????????1???????29???????????????,«??????2»????????????,??,?(13??????)??,????????????«?»????2????????????,?2??????????!

??,???,??????«???????»?

???????,????«???????»?

??????? ???????????:????????????«???2»??,????????????????,???????,???????????,?????????????

?? ????????:????????«?»??????,?,???????«?????????????»,???????????????????«??»???“?”???????????????«?????»“?????”???

(????????????)

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