2???5?,????????????????????????????????????????
????:???
?????????,??????????40??
????????10?50????????
????????????:???????
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?????????????????????
???:????????????????
?????????????????????
?????????????????“??”
??????0.7%???0.8%
?????????????:????????
ISM??????????????
??????GM??:???????????
????????????:????????????
???COS??????????:?????
????????????????????
?????????????????????
???????????????:?????????
????????10?50????????
??????:B?????????????
?????????10?????10????
??????????????????
??????????????????
?????????????15?????
?????????10?????10????
??????H-1B??????????????