Li Lei didn’t meet the famous American professor_____ he was on holiday in America last year.

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问题 Li Lei didn’t meet the famous American professor_____ he was on holiday in America last year.

选项 A、unless
B、until
C、if
D、whether

答案B

解析本题考查的是由not…until引导的时间状语从句，表示“直到……才”，故B项为正确答案。又如：Ididn’t sleep until my mother got home．(直到妈妈回到家，我才入睡。)如果放于句首，句子要倒装，如：Not until mid-night did his father stop working．(直到午夜他父亲才停止工作。)

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本试题收录于：大学英语三级A级题库大学英语三级分类

大学英语三级A级

大学英语三级

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Li Lei didn’t meet the famous American professor_____ he was on holiday in America last year.

大学英语三级A级

大学英语三级

Ithinkit’snouse(read)______withoutunderstanding.

Althoughourhealthisimprovinginmanywaysandwearelivinglongerthaninpreviousdecade，newdiseasesandconditionsthrea

A—InternationalLogisticsB—DistributionChannelsC—GlobalMarketingD—ExcessCapacity

IfyouliveorplantotravelwhereLymediseaseisaproblem,thereareimportantfactsyoushouldknow.Forexample,youcang

AccordingtoCNNC,whobookedticketonlinefor2008BeijingOlympicsmost?______bookedticketonlinefor2008BeijingOlympics

Heknowsnothingabouttheaccident______hereadinthepaper.

Accordingtothewriter,whenmanfindsitimpossibletolivetogetherwithotherspecies,heusually______.Thewriterimplies

Somepeoplebelievethatyouhavetobeaspecialkindofpersontosellaproduct.Butalthoughitisclearthatasuccessfuls

A、Attherailwaystation.B、Attheairport.C、Atthepolicestation.D、Atthebank.B根据男士所问的“airticketandpassport”可知，两人可能是在机场

Wewereallexcitedatthenews_____ourannualsaleshadmorethandoubled.

下列关于醌类化合物理化性质的说法，正确的有

构成财政监督客体的是

A.Toourdelight,theyquicklyadaptedthemselvestothenewworkingenvironment.B.Economicbenefitsmustbecarefullyweighe

Informationtechnologythathelpsdoctorsandpatientsmakedecisionshasbeenaroundforalongtime.CrudeonlinetoolslikeW

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男性，58岁，上腹部隐痛10年，纳差乏力，体重减轻，半年间有黑便，体查发现，左锁骨上窝有2cm×3cm淋巴结2个

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