Life Span About a century ago, the average life span for Americans was about 50 years. /Today, the typical American lives fo

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答案 Life Span About a century ago, the average life span for Americans was about 50 years. /Today, the typical American lives for around seventy-eight years. /What accounts for such increased longevity? /Between 1900 and 1950, inventions such as refrigeration and sewage treatment meant that/young people were able to survive longer. /Moreover, medical breakthroughs helped contain diseases/such as some fatal ones that killed many children. /These advances helped increase the average life span. /This means that future medical breakthroughs will result in even longer average life span.

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专业英语四级

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Life Span About a century ago, the average life span for Americans was about 50 years. /Today, the typical American lives fo

专业英语四级

Thelocalauthoritiesrealizedtheneedtomake______forelderlypeopleintheirhousingprogrammes.

Curioustouristsandreportersfromaroundtheglobeare______uponthepeacefulvillages.

Manypeopleare______toinsectbites,andsomeevenhavetogotohospital.

Thethreementriedmanytimestosneakacrosstheborderintotheneighbouringcountry,_______bythepoliceeachtime.

TheBenefitsofGoingonHolidayWiththeimprovementoflivingstandards,moreandmorepeoplenowadayschoosetogoonhol

IsItWisetoTakeaBoyfriend-for-hireorGirlfriend-for-hireHome?Duringholidays,manyyoungpeoplechoosetohirea"bo

A、Heisgoingtofindanotherjob.B、Heismuchbusierthanbefore.C、Heusedtobeanofficial.D、Hestartedtoworkbeforegra

LifeSpanAboutacenturyago,theaveragelifespanforAmericanswasabout50years./Today,thetypicalAmericanlivesfo

TheDifferencesBetweenAmericanandBritishEnglishI.IntroductionAmericanEnglishandBritishEnglish:thetwo【T1】ofEnglis

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患者，男，58岁，诊为“食管癌”，症见吞咽困难，胸膈痞满，情志舒畅时症稍减轻，抑郁时明显加重，嗳气呃逆，呕吐痰涎，舌质红，苔薄腻，脉弦滑。应辨何证

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基本农田耕作应降低复种指数，禁止任何单位和个人闲置、荒芜基本农田。()

合同成立的地点为()。

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