职称英语题库

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

[单选题]Plant GasScientists have beenstudying natural sources of methane（甲烷，沼气）for

[单选题]A postman's jobmust be a [boring] one.A.tediousB.absorbingC.workaholicD.fas

[单选题]Explorer of theExtreme DeepOceans cover morethan two-thirds of our planet.Y

[单选题]Rising CollegeSelectivityRising collegeselectivity doesn't mean that studen

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

[单选题]The conferencewash [hailed] as a great success.A.publishedB.challengedC.acc

[单选题]Virtual DriverDriving involvessharp eyes and keen ears,analyzing with a bra

[单选题]Do not waste timeon [insignificant] points.A.interestingB. dullC. unimporta

[单选题]Most economistsagree that nations [gain] by trading with one another.A.rely

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

[单选题]The DifferencesAmong Various Types of AdoptionIn the US,there is adifferenc

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

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

[单选题]The Gene IndustryMajor companies are already in pursuit of commercial appli

[单选题]The FridgeThe fridge isconsidered a necessity.It has been so since the l960

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

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

[单选题]The Interpersonal Skillsof Children without SiblingsMany parents may thinkt

[单选题]Can you [take careof] Polly when we are away?A.wait forB.look afterC.laugh

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

[单选题]Historic Route 66.TheStory of America's"Mother Road"The idea for Route66 st

[单选题]The travelers wereready to enjoy the spectacular tidal waves when suddenly

[单选题]The firstnavigational lights in the New World wereprobably lanterns hung at

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

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

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

[单选题]No civilizedcountry should deem theft [lawful]．A.legalB.irresistibleC.enjoy

[单选题]Sugar Accelerate theProcess of AgingSugar is widely usedin our daily life t

[单选题]StopSpamWhen I first got ane-mail account ten years ago,I received communic