What does the passage mainly discuss? According to the passage, the meaning of a message communicated through a pheromone may

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问题 What does the passage mainly discuss?
According to the passage, the meaning of a message communicated through a pheromone may vary when the

选项 A、chemical structure of the pheromone is changed
B、pheromone is excreted while other pheromones are also being excreted
C、exocrine glands do not produce the pheromone
D、pheromone is released near certain specific organisms

答案A

解析

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托福（TOEFL）

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What does the passage mainly discuss? According to the passage, the meaning of a message communicated through a pheromone may

托福（TOEFL）

ThepassageonthefollowingpageshassevensectionsA-G.Choosethecorrectheadingforeachsectionfromthelistofheadings

RunningonemptyArevolutionarynewtheoryinsportsphysiology.AForalmostacentury,scientistshavepresum

Youshouldspendabout20minutesonQuestions27-40,whicharebasedonReadingPassage3below.Recovering

MeasurestocombatinfectiousdiseaseintsaristRussiaAInthesecondhalfoftheseventeenthcentury,Russianauthoritiesbeg

Completethesentencesbelow.WriteNOMORETHANTHREEWORDSforeachanswer.TheacceptablematerialforpackinggoodsinAust

interacting／interaction本题有关保守性文化课堂的教学方式。录音原文的keepingquiet、nottalking是题目中Littleornotalking的同义表述。or前后连接并列结构，由于前面是动词talk的动名词形式

A、Howhydrothermalventsareformed.B、HowlivingthingsgetenergyfromsunlightC、Theharmfuleffectsofcertainchemicalsin

A、She’safraidofgettinghurtB、Shewon’tbefreethisweekendC、She’drathergotoMountHopeD、Shepreferstogoskiingbyhe

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设f(x)为偶函数，g(c)为奇函数，则下列函数中为奇函数的是()。

教师资格报考的思想品德条件是()。

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