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??????,?????????,??????????????,??????????,????????????,??,??????,??????
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?????????:?????????
??2???????0.8%??????
??????????????2000?????
????????????????????
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??????????????????????
????????????:????????????
????????????????:?????
?????????????15?????
????????:????????????
????????????????or??????
??????:??2??6??????????
?????????12????????
????3???????7.2%
?????????????????????
“???”?“???”,?????????????
???????????????????????
????????10?50????????
????????????????12?19?
Android??Windows??????????…
??????????????
????????23????2???????
??????H-1B??????????????
??:????1??????????????
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