某缺铁性贫血患者服用铁剂治疗后出现黑便，护士应向其解释黑便发生的原因是

下列哪些符合临产后宫颈的变化：

PartIVTranslation

Bymakingvehicleslighterinweightaluminumhasgreatlyreducedtheamountoffuelneededtomovethem,(PassageTwo)

PartIIVocabularyandStructure

Directions:Inthisparttherearefortyincompletesentences.Eachsentenceisfollowedbyfourchoices.ChoosetheonethatbestcompletesthesentenceandthenmarkyouranswerontheAnswerSheet.

21.thedifficultiesassociatedwiththeproject,we’llgoonwithit.

A.GivenB.InspiteofC.ThanktoD.Becauseof

22.Itwasalmostdarkinthestreetsafewverypowerfulspotlights.

A.excludingB.butforC.exceptD.exceptfor

23.today,hewouldgettherebyFriday.

A.WouldheleaveB.Ifheleaves

C.WasheleavingD.Werehetoleave

24.Hegavemesomeveryadviceonbuyingahouse.

A.preciousB.expensiveC.wealthyD.dear

25.Hisgoalisnottobecomeasportsman,achampioninacertainfield.

A.butratherbecameB.butrathertobecome

C.butratherbecomingD.butrathertobecoming

26.Ijustmetheronthewayhomefromthebookstore.

A.onpurposeB.byaccidentC.inaccidentD.incase

27.Idon’tknowabouthim,commentonhimbehindhisback.

A.letaloneB.letgoC.leavealoneD.takeleave

28.Mytransistorradioisoutoforder.It.

A.needtoberepairedB.needrepairing

C.needsrepairingD.needstorepair

29.Noonecouldtellusanythingaboutthestranger.

A.consciousB.mysteriousC.seriousD.previous

30.Maryallfoolishcommentsandkeptonworking.

A.excludedB.ignoredC.deniedD.discharged

31.Iagreewithhim,butnotentirely.

A.untilacertainpointB.tosomepoint

C.tosomeextentD.untilacertainextent

32.Peopleinsomepartsoftheworldoftentaketheirwaterfor.theyuseasmuchwaterastheywish.

A.grantedB.sureC.certainD.pleasure

33.Color-blindpeopleoftenfinditdifficulttobetweenblueandgreen.

A.separateB.compareC.contrastD.distinguish

34.Thousandsofpeopleonthecitytowelcomethevisitingguests.

A.turnedoffB.turnedupC.turnedoutD.turnedover

35.Themountainplaceisbeautiful,buttheworkingconditions,it’sterrible.

A.whenmentionedB.whenitcomesto

C.whenitissaidD.whenitdiesto

36.Areyouspendingmoremoneyonthespaceprogram?

A.infavorofB.byfavorofC.infavortoD.outoffavor

37.Intheofmyparents,standardsofeducationinthepublicschoolareactuallyfalling.

A.ideaB.thoughtC.opinionD.principle

38.fromspace,ourearth,withwatercovering70%ofitssurface,appearsasa“blueplanet”.

A.SeeingB.TobeseenC.SeenD.havingseen

39.Thisyear’stotaloutputvalueofindustryandagriculturewillincrease5percentoverlastyears.

A.byB.toC.ofD.with

40.Maryisthetopstudentintheclass.Shestudiesharder.

A.thananystudentB.thanallthestudents

C.thananyotherstudentD.thansomeotherstudent

41.Manypeoplehaveappliedfortheposition.

A.emptyB.bareC.vacantD.blank

42.Mynewshoescostme50yuan(RMB).ThepricewasthatthelastpairIboughtamonthago.

A.twotimemorethanB.twiceasmuchas

C.astwiceD.asmuchastwice

43.Almosteveryonefailedonthefirstday.

A.passhisdriver’stestB.tohavepassedhisdriver’stest

C.topasshisdriver’stestD.passinghisdriver’stest

44.Overthetraditionalfestivalpeoplevisiteachotherandgreetings.

A.exchangeB.wishC.congratulateD.present

45.Itwasbecausehewastiredoutthathefellasleepstandingup.

A.publiclyB.openlyC.speciallyD.obviously

46.Theyoungmanwasaccusedoftheladyofhermoney.

A.stealingB.robbingC.takingD.grasping

47.NomatterwhereourPartyneedsus,wewillhercall.

A.giveanswerforB.respondto

C.haveresponsetoD.answerto

48.Itisastonishingthatapersonofyourintelligencebecheatedsoeasily.

A.couldB.shouldC.mightD.would

49.Wewerecompletelywhenwefinallyreachedthedestination.

A.wornoffB.worndownC.wornoutD.wornaway

50.Manythingsimpossibleinthepastarecommontoday.

A.consideredB.toconsiderC.consideringD.tobeconsidered

51.Notuntilmanyyearslaterknown.

A.wasthewholetruthbecomeB.didthewholetruthbecome

C.thewholetruthbecameD.thewholetruthhadbecame

52.Wedidn’tknowhistelephonenumber,otherwisewehim.

A.wouldtelephoneB.wouldhavetelephoned

C.hadtelephonedD.musthavetelephoned

53.Thereisnopointwithhim,sincehehasalreadymadeuphismind.

A.argueB.toargueC.inarguingD.ofarguing

54.Iappreciatethatletterforme.

A.youtowriteB.yourwritingC.youwriteD.thatyouwriting

55.I’dliketoaspecialseatfortheconnectofMay5.

A.serveB.reserveC.preserveD.conserve

56.thatsoniswellagain,younolongerhaveanythingtoworryabout.

A.SinceB.NowC.WhenD.After

57.Generallyspeaking,allkindsofmaterialswillexpandwhenheatedbutwillwhencooled.

A.contrastB.contractC.surviveD.return

58.Youwon’tknowifitfitsyouuntilyouiton.

A.willtryB.aretryingC.aretotryD.havetried

59.Afteralleffortsinvain,hehadtoaccepttheresult.

A.regularlyB.shallowlyC.physicallyD.painfully

60.Therestofhislifeistothecauseofinternationalexchangesofvisitingscholars.

A.addedB.putC.savedD.committed

I’mworriedabouttheappearanceofthefloor.Ineedto_____it.