What aspect of ants does the passage mainly discuss? What is the role of pheromones ill the mass migrations of ants?

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问题 What aspect of ants does the passage mainly discuss?
What is the role of pheromones ill the mass migrations of ants?

选项 A、Pheromones are used to create a trail that directs the ants during migrations.
B、Pheromones signal the ants that the nest has been invaded and must be abandoned.
C、Pheromones control the speed at which ants move from one location to another.
D、Pheromones enable scouts to identify suitable areas for establishing a new nest.

答案A

解析

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托福（TOEFL）

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What aspect of ants does the passage mainly discuss? What is the role of pheromones ill the mass migrations of ants?

托福（TOEFL）

Benusedasasourceofinformation.HydrostaticisabetterindicatorthanBMI.

CompletethenotesbelowWriteONEWORDONLYforeachanswer.TheGherkinBuildingCommissionedby:【L31】______firmcalledFoste

Whichattitudeisassociatedwiththefollowingpeopleduringtheconversation?ChooseSIXanswersfromtheboxandwritetheco

Completethenotesbelow.WriteONEWORDAND/ORANUMBERforeachanswer.MovingtoBanfordCityExampleLindarecommendsliving

TheTawnyOwlMost【L31】owlspeciesinUKStronglynocturnalHabitatMainlylivesin【L32】,butcanalsobeseeni

(Independencepolitical)ofnewspapers(became)a(commonfeature)of(journalism)intheUnitedStatesofthe1840’sand1850’s

(The)federalsystem(of)governmentinCanada(is)similarto(it)oftheUnitedStates.

A、Newton’slifeandtimes.B、TheinfluenceofearlierscientistsonNewton’sideas.C、Howgravityrepelsobjectsveryclosetoe

ScienceFiction?NotAnyMoreSciencefictionhasoftenbeenthesourceofinspirationfornewtechnologies.Theexoskeleton

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按决策主体划分，决策可分为_____________和个人决策。

下列乳腺癌非对称照射野摆位技术描述不正确的是

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如果长期负债与所有者权益之和小于其长期资金需求，这表明借款人是()。

设定贷款行业比例属于()策略。

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ScienceFiction?NotAnyMoreSciencefictionhasoftenbeenthesourceofinspirationfornewtechnologies.Theexoskeleton

"PhilosophyClass"WhydoestheprofessormentionthedrawingbyLeonardodaVinci?

某收益性资产，经专业评估人员测定，尚可使用3年，其预期收益分别为30万元、40万元、20万元，假定折现率为10％，则该资产的评估值最接近于()

按决策主体划分，决策可分为_____________和个人决策。

下列乳腺癌非对称照射野摆位技术描述不正确的是

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A、Touristandanimalfeeder.B、Consultantandanimalexpert.C、Interviewerandinterviewee.D、Petownerandanimaldoctor.C

Benusedasasourceofinformation.HydrostaticisabetterindicatorthanBMI.

TheTawnyOwlMost【L31】owlspeciesinUKStronglynocturnalHabitatMainlylivesin【L32】,butcanalsobeseeni