Nowadays many scientists depend on radiocarbon for dating age-old objects. Radiocarbon is reliable in dating an object back to

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问题 Nowadays many scientists depend on radiocarbon for dating age-old objects.
Radiocarbon is reliable in dating an object back to at least 50,000 years.

选项 A、Right
B、Wrong
C、Not mentioned

答案A

解析答案见文章倒数第二段最后一句：Most scientists agree that this ratio is useful for dating items back to at least 50,000 years．

转载请注明原文地址:https://kaotiyun.com/show/YmQd777K

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. Radiocarbon is reliable in dating an object back to

职称英语理工类C级

职称英语

Iknowpeoplewhofinditpracticallyimpossibletogiveupsmoking.

ClinicalTrials1Manyclinicaltrialsaredonetoseeifanewdrugordeviceissafeandeffectiveforpeopletouse.Sometime

ProlongingHumanLifeProlonginghumanlifehasincreasedthesizeofthehumanpopulation.Manypeoplealivetodaywouldha

Ihadsomedifficultyincarryingouttheplan.

Jackeventuallyovertookthelasttruck.

Therepairworkinvolvedmodifyingtwoofthewindows.

A.ModerntechniquesenablethesurgeontooperatesuccessfullyuponallpartsofthehumanbodyB.Surgeonsareespeciallytrai

Thebasisforoverhaulingthecountry’stobaccoregulations—andtheopportunitytosnagahugewindfallfortheTreasury—(46)

In1816itseemedinevitablethatSouthernstateswouldbreakawayfromtheUnion.

Plantswillemitanincreasedamountofheatwhentheyareinpoorphysicalcondition.Farmerscansaveaconsiderableamounto

Pickouttheappropriateexpressionsfromtheeightchoicesbelowandcompletethefollowingdialogsbyblackeningthecorrespon

与骨骼肌、心肌相比，消化道平滑肌的特点是()。

估算或确定投资项目权益资金成本的方法有()。

工程项目风险分解结构中，属于外部风险的有()

根据奥尔波特的特质理论，属于人格的建筑构件的特质是()。

假设市场上有AB两种债券。A债券目前距到期日还有2年，B债券目前距到期日还有3年。两种债券除到期日不同外，其他方面均无差异。如果市场利率出现了急剧下降，则下列说法中正确的是()。

教育教学中师生的矛盾是客观存在的，师生发生冲突亦是难免的，师生之间很难建立良好的师生关系。()

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