US?USA?America??????_????
...US?USA?America??????1????????????????America????????????????????????????????????USA???US?America??????????????????2?...
https://zhidao.baidu.com/question/57298679.html
U.S.?USA?America ?????? - ??
...USA/US?????????????????.????????????????????????????????ISO-3166?????????...
https://www.zhihu.com/question/26046878
US ?UK????????????_????
...US???????UK??????? ???? ??????????United Kingdom of Great Britain and Northern Ireland?????????Britain?????????United Kingdom?????????????????????????????????????????????? ?????? ????United ......
https://zhidao.baidu.com/question/1176978754862192259.html
1s????ms,??us,??ns - ????
...1s????ms,??us,??ns1? (s) ?? 1000?? (ms)?1?? (ms) ?? 1000?? (us)?1?? (us) ?? 1000?? (ns)?1?? (ns) ?? 1000?? (ps)????ps????????1????????????1000????...
https://zhidao.baidu.com/question/573232706608748404.html
uc???????-uc?????????? - ????
...uc???????-uc??????????...
https://zhidao.baidu.com/question/1831978274918842788.html
1S????ms (??)1ms????us (??) - ????
...1s=1000ms,1ms=1000us 1?=1000?? (ms),1??=1?1000? (s)? 1?=1000000 ?? (?s),1??=1?1000000? (s)? 1?=1000000000 ?? (ns),1??=1?1000000000? (s)? 1?=1000000000000?? 1??==1/1000000000000?? 1??=60?? 1??=60??? 1?=24??? 1??=7?? ???=365.25964?? ???=365.256363004???????365?6?9? ......
https://zhidao.baidu.com/question/214291769.html
??????????? - ????
...????????????? ?????? 1. ??????????????HK$??????$?????????????????344?????????????????????????$?????????????????????????????HKD????? 2. ??????$???? ......
https://zhidao.baidu.com/question/188501414802131564.html
lol???????? - ????
...lol????????LOL????????http://na.leagueoflegends.com/??????LOL??????????????????? ......
https://zhidao.baidu.com/question/2215797322523660268.html
A4??US LETTER ???? - ????
...A4??US LETTER???????????????????????A4?Letter??????????A4????????Letter?????????? ???????A4?????210mm x 297mm??US LETTER?????216mm x 279mm????8.5????11???Letter???????????????????? ?? ......
https://zhidao.baidu.com/question/1894512687725355508.html
??????????????????? - ??
...7??? ????????????????????????????????????????????????????????????????????????????????????????????????????????1??????????????????????? ......
https://www.zhihu.com/tardis/bd/ans/31648061732