Nowadays many scientists depend on radiocarbon for dating age-old objects. When an organism dies, the C-14 in it begins to deca

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问题 Nowadays many scientists depend on radiocarbon for dating age-old objects.
When an organism dies, the C-14 in it begins to decay.

选项 A、Right
B、Wrong
C、Not mentioned

答案A

解析本题的内容在最后一段第三句话中可以找到：Once an organism(有机体)dies it stops taking in carbon in any form，and the C-14 already present begins to decay．一旦有机体死亡，它就停止吸收任何形式的碳，它所含的C-14就开始衰竭。

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本试题收录于：职称英语理工类C级题库职称英语分类

职称英语理工类C级

职称英语

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Nowadays many scientists depend on radiocarbon for dating age-old objects. When an organism dies, the C-14 in it begins to deca

职称英语理工类C级

职称英语

Theseproductsareinferiortothoseweboughtlastyear.

TryingtoFindaPartnerOneofthemoststrikingfindingsofarecentpollintheUKisthatofthepeopleinterviewed,one

Hemadeaconsiderablesumofmoneyinrealestate.

TimothyStowofInverGroveHeights,Minn.workedhard,exercisedoftenandthoughthegotplentyofsleep.Yetheneverfeltre

FoodSafetyandFoodborneIllnessesFoodsafetyisanincreasinglyimportantpublichealthissue.Governmentsalloverthew

A.around50percentofthetotalpopulationinagivencountryB.highestsaturationC.5.8millionD.Britain,Canadaandthe

BreakfastStudiesshowthatchildrenwhoeatbreakfastdobetterinschool.Itdoesn’ttakemuchfurtherthoughttobelieve

Theworkersfinallycalledoffthestrike.

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