请阅读Passage2。完成第小题。 Passage2 TheWorldCuphasbecomethemoststreamedlivesportingeventtheUShaseverseen,asAmericanstunedintothisyear'stournamentontheirsmartphones,tabletsandcomputersinrecordnumbers. AsurgeofUSinterestinfootballthisyearhasalsoledtorecordtelevisionaudiencesforbroadcastsonESPNandUni-vision,theSpanish-languagenetwork.TheUSteam'slossonTuesdaytoBelgiumaverageda9.6overnightratingonESPN,accordingtoNielsen,thehighestforanyWorldCupmatchthenetworkhasbroadcast. Buta50percentsurgeinlivestreamingcomparedwiththepreviousrecord,setduringthe2012LondonOlympics,showsthatthesport'sappealhasgrownparticularlyamongyounger,moredigital,fans.Youngpeopleareenergeticandfondofsporting,TheWorldCupisagreattournamentoffootball,sotheymustbeattractive.Ontheotherhand,nowtheelectronicdevicesaredevelopingrapidly,morepeoplehavesmartphones,tabletsandcomputers.ThentowatchtheWorldCupbecomesmucheasier. USviewershavesofarwatchednearly30mhoursofstreamingvideoonESPN'sWoAdCupwebsiteandapps,thenetworksaid,beatingthepreviousrecordof20.4mviewinghoursduringNBC's2012Olympicscoverage.Univisionhasstreamed1.Smhourssincethestartofthetournament. Lastweek'sUSAvs.Germanymatchdrewarecord1.TmstreamingviewerstoESPNatitspeak,withstreamingonUnivisionpeakingat747,000.Tuesday'sUSAvs.Belgiummatchpeakedat1.5mstreamsonESPNand680,000onUnivision. Incomparison,livestreamingofJanuary'sSuperBowlpeakedatl.lm. WhiletheeliminationoftheUSteamleavesaquestionmarkoverUSfans'interestintherestofthetournament,Univision'saudiencefornon-USgameshasbeenrobust. UnivisionsaiditsbroadcastonSundayoftheMexicovs.Netherlandsmatchwasthemost-watchedprogramme,ofanykind,inUSSpanish-languageTVhistory,withanaverage10.4mviewers.ItsaudienceshavebeenthelargestincitieswithlargeSpanish-speakingpopulations,suchasMiami,LosAngeles,HoustonandNewYork. Withmostmatchesbeingshownduringbusinesshours,Americansareincreasinglyturningtotheirdevices,suchassmartphones,tabletsandcomputerstokeepupwiththetournament.Fifa,football'sgoverningbody,saidUSfansmakeup20percentofitsglobaldigitalaudienceandarespendingmoretimeonitswebsiteandappsthanfansinBrazil,Germany,EnglandandFrancecombined. WithdifferentkindofelectronicdevicestowatchWorldCup,thenumberofaudiencebecomeslarger.ThefloodofdemandcausedsomeproblemswithESPN'sfeeds,leadingfrustratedviewerstotaketoTwittertocomplainaboutthematchcuttingout.ThathadalsohappenedduringtheUSAvs.Germanygame. Theword"surge"(Line1,Para.2)maymean__________. 查看材料
A.a sudden increase
B.an unexpected decrease
C.an abrupt change
D.a high wave
正确答案是A