It is A(estimated) that a scientific principle has B(a life expectancy) of approximately C(a decade) before D(it drastically) re

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问题 It is A(estimated) that a scientific principle has B(a life expectancy) of approximately C(a decade) before D(it drastically) revised or replaced by newer information.

选项

答案D

解析 it drastically改为it is drastically，用被动语态。

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It is A(estimated) that a scientific principle has B(a life expectancy) of approximately C(a decade) before D(it drastically) re

考博英语

Thepolicelethimgo,becausetheydidn’tfindhimguilty______themurder.

Therelationshipbetweenformaleducationandeconomicgrowthinpoorcountriesiswidelymisunderstoodbyeconomistsandpoliti

Smugglingisa______activitywhichmightbringdestructiontooureconomy;therefore,itmustbebanned.

Onebusyday,Iwasracingaroundtryingtogettoomuchdone,andIexclaimedtomythreekidsinthecar,"Wecangetboththi

TheNationalTrustinBritain,togetherwithsimilarvoluntaryorganization,playsanincreasinglyimportantpartinthepreserv

Windproducesfromtheunevenheatingoftheatmosphereandirregularitiesintheearth’ssurface.Theairmovementbetweenthes

DuringMcDonald’searlyyearsFrenchfriesweremadefromscratcheveryday.RussetBurbankpotatoeswere【1】,cutintoshoestrin

Hurricanesareviolentstormsthatcausemillionsofdollarsinpropertydamageandtakemanylives.Theycanbeextremelydange

Universitiesarefrequentlyjudgedonthebasisoftheaccomplishmentsoftheirprofessorsandscientists.Scientistswhopublis

Atdusk,Mr.Hightowerwouldsitinhisoldarmchairinthebackyardandwistfullyloseinreminiscenceofhisyouthromances.

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