??2?????17?????????????? ???????????????????????17??????????,????????????????????????????????,??
???:???
??????????????????????
???????????????????
?????????????????“????”
??:?????0.19%????????
????:????????????
????:???????????????
?????????“????”???????
?????????????644?
?????????«????»:?????10%
?????????????644?
?????????????????????
??????????????????
??19????????????????????
?????????????????
??????????!?????????
70???????856?:??????????-?
???????????:???????????
??????????????500????80%?
3?29?16?????????
??“??????”:????????????
????:????????????????1.10
??-???????2?????????
???????????????GB????
??????????!?????????
??????560?????????2000??