?? ?? ???
??
???“?”??30???????????????
???????????????????
?????2?18???????????????,??????????,?????????,??????,?????
?????????:?????
?? ???????????????
19???????????????????
???????????:??????????
??:???????????????????
??3?????????0.2%
??????????????????6000??
??????????????8???
???????????????????«??»
??????????????????6???
??3?????????0.2%
????15????????????:????
???????????????61???(?)
????????????????????
??????:????????????
???????????????
????????224.6???????10????…
???????????????????
????????????????????
???????????????61???(?)
????????????????????
????????????470?:???3?1?
??!?????????????????
PPI??5????????????
??:??????????????
???????????14???????????(?…
??2??????2?1600?????2?