理工类C级题库

[单选题]A Biological ClockEvery living thinghas what scientists call a biological c

[单选题]Don't Count on Dung（粪便）Conservationists（自然保护主义者）may be miscalculating thenu

[单选题]Animal's"SixthSense"A tsunami wastriggered by an earthquake in the Indian O

[单选题]Life Expectancy inthe Last Hundred YearsA hundred yearsago,life expectancy

[单选题]To tell you thetruth,it is beyond my [capacity] to finish the task in so sh

[单选题]Vibrating RubberCeliphonesVibrating rubberceliphones could be the next big

[单选题]Xiao Ming's [abnormal]behavior in the exam attracted the teacher's attentio

[单选题]In an age whentechnology is developing faster than ever before,many people

[单选题]The SaharaThe name Sahara derives from the Arabic word for"desert"or"steppe

[单选题]Jamie Stephenson hasseen first-hand what modern genetic science can do for

[单选题]Infection of AIDSAccording to areport of the World Health Organization,this

[单选题]We Need Green SpaceDecades ago,any openfield,any vacant lot,any group of tr

[单选题]Prolonging HumanLifeProlonging humanlife has increased the size of the huma

[单选题]A Tale of ScottishRural LifeLewis GrassicGibbon's Sunset Song(1932)was vote

[单选题]In many of thedevelopinlg countries in Africa and Asia,the population is gr

[单选题]The curious looksfrom the strangers around her made her feel [uneasy].A.dif

[单选题]No one can [prevent]me from hunting for a bright future.A.stopB.allowC.forb

[单选题]How to Do with Earthquake?Ideally,people wouldlike to know when an earthqua

[单选题]The History of theFridge 1 The fridge is considered a necessity.It has been

[单选题]Mad ScientistStereotype Outdated Do people still imagine a physicist as a b

[单选题]“I am not meddling.”Mary said [mildly] ，“I'm just curious.”A.gentlyB.shylyC

[单选题]Exercising YourMemory Aging does notmean a dramatic decline in memory power

[单选题]She is [slender],withdelicate wrists and ankles.A.slimB. paleC. weakD. sick

[单选题]The Greatest Mysteryof Wha1egThe whale is a warm一blooded,air-breathing anim

[单选题]The Greatest Mysteryof Wha1egThe whale is a warm一blooded,air-breathing anim

[单选题]It was anexperience that completely [demolished] her confidence.A.pulled do

[单选题]WaterFrom thebeginning,water has furnished man with a source of food and a

[单选题]A Sunshade（遮阳伞）for the PlanetEven with the bestwill in the world,reducing o

[单选题]Shouldn't We KnowWho Invented the Windshield WiperWe know the famousones一th

[单选题]The markings areso blurred that it is difficult to [identify].A.nameB.disti