??1???????????????23?? ??????????????,??????????23??
?????,?????????????????“123??”??,????
????:????
??:??????????????????
??????????????????????
??????????????????
???????5?????:????????
?????????????????“??”
??????????172?4.9???36.7?
????????:????????????
????????????????????
???????????????????
??????????????2000?????
????????10?50????????
?????????????????????
????????????:????????
??????0.7%???0.8%
????????23????2???????
???????????????????
??????10???6????4??????
??????????????????
??????????????????
?????????????????????
?????????????????????
??????10???6????4??????
?????????????????????
??:??????????
???????:????????“???”