临产的重要标志是

翻译：

如今，中国正步入老龄化社会，因此独生子女一代面临着巨大的工作和生活压力。中国政府开始适当调整计划生育政策，允许一些家庭在特殊情况下生育二胎。但调查显示，很多夫妻迫于不断加重的经济压力，放弃生育二胎。因此，要从根本上解决老龄化的问题不能依靠出生率的上升，最有效的办法是建立有效的社会保障制度。

某孕妇，妊娠39周，行无应激试验为无反应型，进一步做宫缩压力试验，其目的是

下述情况出现宫缩乏力时，可用催产素产的是

Passage4

Questions16to20arebasedonthefollowingpassage:

IrecentlywroteanautobiographyinwhichIrecalledmanyoldmemories.Oneofthemwasfrommyschooldays,whenourninthgradeteacher,MissRaber,wouldpickoutwordsfromtheReader’sDigesttotestourvocabulary.

Today,morethan45yearslater,Ialwayscheckout“ItpaystoEnrichYourWordPower”firstwhentheDigestcomeseachmonth.Iamimpressedwiththatidea,wordpower.Reader’sDigestknowsthepowerthatwordshavetomovepeople—toentertain,inform,andinspire.TheDigesteditorsknowthatthebigwordisn’talwaysthebestword.Takejustoneexample,aQuotableQuoteformtheFebruary1985issue:”Timeisaplayfulthing.Itslipsquicklyanddrinksthedaylikeabowlofmilk.”

Nineteenwords,onlytwoofthemmorethanonesyllable,yethowmuchtheyconvey!That’susuallyhowitiswithReader’sDigest.Smallandsimplecanbeprofound.

AschairmanofafoundationtorestoretheStatueofLiberty,I’vebeenmakingalotofspeecheslately.Itrytokeepthemfairlyshort.Iusesmallbutvividwords:wordslike“hope”,“guts”,“faith”,“dreams”.ThosearewordsthatmovepeopleandsaysomuchaboutthespiritofAmerica.

Don’tgetmewrong.I’mnotagainstusingbigwords,whenitisrighttodoso,butIhavealsolearnedthatasmallwordcanworkasmallmiracle—ifit’srightword,intherightplace,attherighttime.It’sa“secret”thatIhopeneverforget.

16.Thepassageismainlyabout.

A.oneofthemanyoldmemories

B.usingsimplewordstoexpressprofoundideas

C.Reader’sDigestandschoolspeeches

D.howtomakeeffectivespeeches

17.ItseemsthatReader’sDigestisamagazinepopularwith.

A.peopleofallagesB.teenagersC.schoolteachersD.elderlyreaders

18.Theexampletheauthorgivesinthesecondparagraphmightmean.

A.onespendshisdayplayinganddrinking

B.don’twasteyourtimeasonedoes

C.timeslipseasilyifyoudon’tmakegooduseofit

D.timeisjustlikedrinkingmilkfromabowl

19.Theauthor’s“secret”is.

A.toavoidusingbigwordsatanytime

B.tousewordsthathavethepowertomovepeople

C.toworkamiraclebyusingasmallword

D.tousesmallandsimplewordswherepossible

20.Accoedingtotheauthor,well-chosenwordscangivepeople.

A.hope,courageandideas

B.confidence,determinationandstrength

C.pleasure,knowledgeandencourage

D.entertainment,informationandpower

Questions16to20arebasedonthefollowingpassage: