各位大哥大姐谁能帮小妹做大学英语作业,12-20单选题12Peopleofall______wouldliketheirtaxpaymenttobereasonablyusedfortheirbenefit.a、rangesb、ranksc、stagesd、scans13Helookedatthemagician’stricksin______

　　各位大哥大姐谁能帮小妹做大学英语作业,

　　12-20单选题

　　12Peopleofall______wouldliketheirtaxpaymenttobereasonablyusedfortheirbenefit.

　　a、ranges

　　b、ranks

　　c、stages

　　d、scans

　　13Helookedatthemagician’stricksin_______.

　　a、improvement

　　b、amazement

　　c、acknowledgement

　　d、refreshment

　　14Ifthecustomeris_____topayabill,thecompanyturnstheiraccountovertoacollectionagency.

　　选项:

　　a、unusual

　　b、unwilling

　　c、unworthy

　　d、unwanted

　　15Thecouple_______breakingup.

　　选项:

　　a、endedupas

　　b、endedup

　　c、endedas

　　d、cametoanend

　　16Jackismadaboutrockmusic,whilehissisterseems____onclassicalmusic.

　　a、interested

　　b、keen

　　c、delighted

　　d、like

　　17Ifwelookattheproblem_____weshouldbeabletosolveit.

　　a、symbolically

　　b、symptomatically

　　c、systematically

　　d、sympathetically

　　18Therearedifferentwaysinwhichpeopletrytodealwiththeproblemofenergy.Onewayisthegreaterproductionofcommonenergysources,suchascoal,oilandgas.Thetroublewiththesesources,however,isthattheyarenotrenewable.

　　Anotherwayisenergyconservation(节能),whichmeansusingenergymoreefficiently(有效地).Insomeverycoldcountriespeoplebuildspecialhousestosaveenergy.Theyplacematerialsbetweentheinsideandtheoutsideofthewallsofthehousetokeepthecoldoutandthewarmthin.Thehouseisheatedbythelights,thebodyheatofthepeopleandtheotherequipmentinit.

　　Finally,renewableenergysourcesareusedeventhoughtheyareoftenexpensivetodevelop.Oneformoftheseisgeothermalenergy.Incertainpartsoftheworldthetemperatureoftheearthincreasesthirtydegreescentigradewitheachkilometerdown.Atsixkilometers,therefore,itrisestonearlytwohundreddegrees.Togettheheat,waterispumped(压；抽)downintotherocksandbackuptothesurface.Heatfromtheearthisalreadyusedincertaincountries.

　　Ataplacewherethesurfacetemperatureis15°C,howdeepdoyouhavetodigsoastogetatemperat