理工类A级题库

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

[单选题]A Heroic WomanThe whole of theUnited States cheered its latest hero,Ashley

[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t

[单选题]American RoadsThe United States iswell-known for its network of major highw

[单选题]The smoke [obscured]the moon.A.darkenedB.heldC.blackenedD.prevented

[单选题]Working for Fun andProfitIt's a sunnyweekend morning. You decide to take a

[单选题]Sharks Perform aService for Earth's WatersIt is hard to getpeople to think

[单选题]“Salty” RicePlant Boosts HarvestsBritish scientistsare breeding a new gener

[单选题]Stars in Their Eyes([ABCDEF]+.)(.*?)The Scientific American Book of theCosm

[单选题]Hearing problems maybe (alleviated) by changes in diet and exercise habits.

[单选题]A Ride in aCable-carA ride in acable-car is one of the exciting and enjoyab

[单选题]The Age of beingBullied and Its EffectThe age at whichkids first fall victi

[单选题]Fight against theSide Effects of Cancer TreatmentOnce the harddecisions hav

[单选题]Renewable EnergySourcesToday petroleumprovides around 40%of the world's ene

[单选题]Sleep Lets BrainFile MemoriesTo sleep.Perchanceto file?Findings published o

[单选题]The [bricklayer]is working on the house.A.masonB.electricianC.plumberD.carp

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

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

[单选题]The subway systemis no longer [operative].A.runningB.movingC.rotatingD.work

[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t

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

[单选题]Improve Your MemoryTo many peopleadvancing age means losing your hair,your

[单选题]Motoring Technology2 million road deaths worldwide occur each year,plus a f

[单选题]He was not [eligible]for the examination because he was over age.A.competit

[单选题]Are These Food Safe to Eat?Traditionally,in plant breeding,there are crossi

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

[单选题]Renewable EnergySourcesToday petroleumprovides around 40%of the world's ene

[单选题]Music and DrivingListening to loud music while driving can seriously hamper

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

[单选题]Science and Truth“FINAGLE”（欺骗）is not a word that most people associate with