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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考博英语

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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

Inthispart,youarerequiredtowriteacompositionentitledShouldUniversitiesinChinaExpandTheirEnrollmentinnolesst

Althoughmostbirdshaveonlya______senseofsmell,theyhaveacutevision.

Althoughtheeconomyseemed,afterafewtensemonths,to______thestormwithoutseriouslong-termdamage,thebankswerehit

Inthissectionyouarerequiredtowriteanessayinaccordancewiththefollowingrequirements.A.Title:ScientificDisco

However,growthinthefabricatedmetalsindustrywasableto______someofthedeclineintheironandsteelindustry.

Europeanconservatives,untiltheendofthe19thcentury,rejecteddemocraticprinciplesandinstitutions.Insteadtheyoptedf

Whenherealizedthepolicehadspottedhim,theman______theexitasquicklyaspossible.

AbudgetapprovedbytheEuropeanParliamentfortheEuropeanEconomicCommunitywasdeclaredadoptedTuesdaydespiteopposition

《窦娥冤》的作者是________。

印度人喜欢吃的肉类是鸡、鸭、鱼、虾，蔬菜是番茄、洋葱、白菜、菠菜、茄子、菜花，但不爱吃土豆。()

女，26岁，1-0-1-1，因停经42天，尿HCG+，要求做人工流产术。术前妇科检查：宫体后倾后屈，妊娠6周大小，软，附件(-)，术中测宫腔深10cm，吸出组织20g，未见绒毛，出血少，术毕宫腔深9.5cm

A．吉非贝齐B．ω-3脂肪酸C．普罗布考D．辛伐他汀E．烟酸属B族维生素，用量较大时有调节血脂作用，为目前升高HDL一C水平较为有效的药物为

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