理工类B级题库

[单选题]Avalanche and ItsSafetyAn avalanche is asudden and rapid flow of snow,often

[单选题]We had only a [vague]description of the attacker.A.conciseB.impreciseC.unpo

[单选题]A Four-day WeekFancy a three-dayweekend一not just once in awhile but week in

[单选题]The Impact ofAntarctic Ozone HoleThe Antarctic ozone（臭氧）hole is changing we

[单选题]InflationBusiness andgovernment leaders also consider the inflation rate to

[单选题]EcoDormThoreau saideducation often made straight-cut ditches out of twistin

[单选题]The Arctic Ice isThawingFather Christmas mayhave to move his"workshop"from

[单选题]Avalanche and ItsSafetyAn avalanche is asudden and rapid flow of snow,often

[单选题]As both areligion and a social force,Puritanism has madea [widespread] infl

[单选题]Mother Nature ShowsHer StrengthTornadoes（龙卷风）and heavy thunderstorms moveda

[单选题]Local Newspapers in Britain Britain has alarge circulation（发行量）ofthe nation

[单选题]He is [accustomed]to living in the countryside.A.usedB.devotedC.determinedD

[单选题]Cell Phone Lets YourSecret OutYour cell phoneholds secrets about you.Beside

[单选题]How Men Face the Fat ProblemIt is a pleasure to see men of a certain age wo

[单选题]School LunchResearch has shownthat over half the children in Britainwho tak

[单选题]She （longed for） a chance tospeak to Tom in private.A.preferredB.wantedC.ch

[单选题]Avalanche and ItsSafetyAn avalanche is asudden and rapid flow of snow,often

[单选题]California一A Land of Variety and ContrastCalifornia is a land of variety an

[单选题]Computer Plug-inLife on theInternet can be enriched if you don't restrict y

[单选题]Microchip Research Center CreatedA research centerhas been______(51)in this

[单选题]A Special JourneyI am often asked todescribe the experience of_______(51)a

[单选题]Can Gene TechnologyMake Human Smarter?Almost everyonewants to get smarter.

[单选题]A Special JourneyI am often asked todescribe the experience of_______(51)a

[单选题]PsychologicallyUnhealthy InternetInternet is usedwidely in our daily life.I

[单选题]Have You Filled upthe Form?Of all things in theworld,I most dislike filling

[单选题]Theair-conditioners are tested for [defects] before leaving the factory.A.p

[单选题]American Families1 Despite social andeconomic differences among Americans,m

[单选题]The firemen wereunable to control the [blaze].A.flowerB.blowC.flameD.stroke

[单选题]It is [advisable]to wear sunscreen when out in the sun.A.possibleB. profita

[单选题]The restauranthas a good [reputation].A.systemB.nameC.relationD.leadership