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學習快評丨qibao666888　　一?(yi)、確?(que)保??(bao)來??(lai)美??(mei)目?(mu)的??(de)與??(yu)所??(suo)持?(chi)簽??(qian)證??(zheng)種??(zhong)類??(lei)一??(yi)致??(zhi)??。??持??(chi)最??(zui)長??(chang)有??(you)效??(xiao)期??(qi)為??(wei)十??(shi)年??(nian)的??(de)B1/B2、B1或?(huo)B2簽?(qian)證??(zheng)僅??(jin)適??(shi)用??(yong)于??(yu)來??(lai)美??(mei)短??(duan)期??(qi)旅??(lv)游?(you)、商??(shang)務??(wu)、探??(tan)親?(qin)等??(deng)??，赴??(fu)美??(mei)工??(gong)作??(zuo)應??(ying)申??(shen)請??(qing)工??(gong)作??(zuo)簽??(qian)證??(zheng)???！　《??(er)、提??(ti)前??(qian)做??(zuo)好??(hao)準?(zhun)備??(bei)工??(gong)作??(zuo)??。?確??(que)保??(bao)中??(zhong)國??(guo)護??(hu)照??(zhao)有??(you)效??(xiao)期??(qi)超??(chao)過??(guo)6個?(ge)月??(yue)且??(qie)簽??(qian)證??(zheng)合??(he)法?(fa)有??(you)效??(xiao)??。持??(chi)最?(zui)長??(chang)有?(you)效??(xiao)期??(qi)為??(wei)十??(shi)年??(nian)的?(de)B1/B2、B1或??(huo)B2簽??(qian)證??(zheng)人??(ren)員??(yuan)應??(ying)在??(zai)登??(deng)機??(ji)前??(qian)至?(zhi)少??(shao)72小??(xiao)時??(shi)按??(an)要??(yao)求??(qiu)做??(zuo)好??(hao)EVUS信??(xin)息??(xi)登??(deng)記??(ji)及??(ji)更??(geng)新??(xin)??。留??(liu)學??(xue)人?(ren)員??(yuan)應??(ying)確??(que)認??(ren)其??(qi)留??(liu)學??(xue)身??(shen)份??(fen)狀??(zhuang)態(tài)??(tai)證??(zheng)明??(ming)I-20 SEVIS合??(he)法??(fa)有??(you)效??(xiao)、I-20表??(biao)格?(ge)第??(di)二??(er)頁??(ye)旅??(lv)行??(xing)授??(shou)權(quán)??(quan)欄??(lan)經(jīng)??(jing)校??(xiao)方??(fang)官??(guan)員??(yuan)簽??(qian)字??(zi)確??(que)認??(ren)??。。