The word "threatened" in the first sentence of the first paragraph could be best replaced by Why do researchers estimate elepha

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问题 The word "threatened" in the first sentence of the first paragraph could be best replaced by
Why do researchers estimate elephant numbers in an area by counting dung piles?

选项 A、Because elephants are difficult to catch.
B、Because it is not possible to count elephants from a plane.
C、Because it is not possible to keep track of elephants.
D、Because elephants are shy animals.

答案B

解析

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本试题收录于：职称英语综合类A级题库职称英语分类

职称英语综合类A级

职称英语

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The word "threatened" in the first sentence of the first paragraph could be best replaced by Why do researchers estimate elepha

职称英语综合类A级

职称英语

MotherNatureShowsHerStrengthTornadoes(龙卷风)andheavythunderstormsmovedacrosstheGreatLakesandintoTrumbullCount

Aboutonequarteroftheworkersinthecountryareemployedinfactories.

ExploreroftheExtremeDeepOceanscovermorethantwo-thirdsofourplanet.Yet,justasmallfractionoftheunderwaterw

Withthehelpofthespace-shuttle-carriedradar,archeologistsfoundWhichofthefollowingistrueofthesand-buriedlandsca

SharksPerformaServiceforEarth’sWatersItishardtogetpeopletothinkofsharksasanythingbutadeadlyenemy.They

ImportanceofthePublicImagePublicimagereferstohowacompanyisviewedbyitscustomers,suppliers,andstockholders,

ImproveComputer-researchSkillsLikemanycollegestudents,JoseJuarezcarriesaroundapocket-sizedcomputerthatletshi

HumanandCultureHumanbeingsareanimals.Webreathe,eatanddigest,andreproducethesamelifeprocessescommontoal

HowtoGetalongWellwithYourBoss1．Beforeyouarguewithyourboss,checkwiththeboss’ssecretarytodeterminehismood

Theyagreedtomodifytheirpolicy.

以刑部作为刑事案件主审机关的朝代有

在10kV及其以下电气线路检修时，操作人员及其所携带的工具等与带电体之间的距离不应小于()m。

原始凭证填制过程中，大写金额到元为止的，后面要写“整”或“正”字，有分的，不写“整”或“正”字。()

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“运费”栏应填()。

反映构成所有者权益的各组成部分当期的增减变动情况的财务报表是()。

SanFranciscohasitscablecars.SeattlehasitsSpaceNeedle.And,Longviewhasitssquirrelbridge.Thebridge,whichhasatt

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A、Herpreviousdebthadn’tbeenclearedyet.B、Hercredithistorywasconsideredpoor.C、Shehadapparentlyaskedfortoomuch.