VLAN STACKING扩展了4K VLAN，使用户VLAN数目扩展到4096＊4096个。
1、正确正确
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Writing:
Thepresentworldwitnessesinventionanduseofvariousrobots,someofwhomevencanplaygameswithhumananddefeatthelatter.Suchbeingthecase,manyareworriedthatrobotswillsurpasshumanbeingsinintelligenceandenslavethem,whileothersbelievethatthehumanmindwillalwaysbesuperiortomachinesbecausemachinesareonlytoolsofhumanminds.Whatisyouropinion?Writeanessayofabout400words.
Inthefirstpartofyouressayyoushouldstateclearlyyourmainargument,andinthesecondpartyoushouldsupportyourargumentwithappropriatedetails.Inthelastpartyoushouldbringwhatyouhavewrittentoanaturalconclusionormakeasummary.
Youshouldsupplyanappropriatetitleforyouressay.
Markswillbeawardedforcontent,organization,grammarandappropriateness.Failuretofollowtheaboveinstructionsmayresultinalossofmarks.
Thefirststepinthestudyofanylanguageisobservingand____preciselywhathappenswhennativespeakersspeakit.
Rumorsareeverywhere,spreadingfear,damagingreputations,andturningcalmsituationsinto____ones.
-Wehaven’theardfromJaneforalongtime.
-Whatdoyousuppose_____toher?
Thereis______littleinformationabouthimthatwehave______muchdifficultyfindinghim.
