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

2?????1000?????

3?????

4?????????

5?????????

?????12????2?? (??? ??????)???????,???????????????2??,???????8????????????????,???

?«???????????? ?? ?»??????????????9???????,??????????????????????????,???????????????????,???????????????121????896?????,??“?????”?????????????????????????????

????,????,?????????587?????????????????????600???“??”?,??93%?????????(???????????????)?

??,?????????????????????????????????400????240??,?????2.8???

???????????10?????????????,??????2.5??????;??????????160???????????????,?91??????????????;?3.5%,????????????????????????????????(????????????) ??????????:???????????????????