?? ????74?????????“??”
????:1????????????:???????
2??????
3??????????????
4?????600?????
5??????????????
??????????????????“?????????????”????????????,?74??????,???????????????????(USFWS)????,??Z333??“?”???
“???????????”1956??????,??????????5????????????????????????????????,“???”???30??????????????????????,?2021????USFWS????,“??”????????????????,????,??“??”??????????????
?,“?????????????”????????????,???????????????,?45?????????????????,“?????????????”????70%??????????????????80%,???
(??? ???????????????)
??:????