Among humans, the effects of aging vary from one individual to another. The average life ______ for Americans is around 75 years

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问题 Among humans, the effects of aging vary from one individual to another. The average life ______ for Americans is around 75 years, almost twice what it was in the early 1900s.

选项 A、spectrum
B、expectation
C、expectancy
D、width

答案C

解析 (expectancy预期)。句意为：在人群中；衰老的影响因人而异。美国人的平均预期寿命大约是75岁，差不多是20世纪初期的两倍。A．spectrum光谱；B．expectation期望，期待；D．width广阔。

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Among humans, the effects of aging vary from one individual to another. The average life ______ for Americans is around 75 years

考博英语

UptonSinclair,anAmericanwriterofthe20thcentury,showedhis______geniusforrecreatingsocialhistoryinhisnovels.

Inthispart,youarerequiredtowriteacompositionentitledShouldUniversitiesinChinaExpandTheirEnrollmentinnolesst

Mygrandmotherhasbeenillfortwomonths,soherhealthhas______.

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Writeanapplicationletter.Youshouldwriteabout100words,andbaseyourcompositionontheoutlinebelow.Supposeyoua

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Thelocalauthoritiesrealizedtheneedtomake______forelderlypeopleintheirhousingprogrammes.

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