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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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

ReadthepassagebelowandanswerQuestions15-21.CoursesAvailableatNorthCoastCollegeCampusesAgriculture

CompletethesentencesbelowwithwordstakenfromReadingPassage1.UseONEWORDforeachanswer.Writeyouranswersinboxes

Lookatthefollowingresearchers(Questions36-40)andthelistoffindingsbelow.Matcheachresearcherwiththecorrectfinding

theprocedureforsortingthroughtheremainsofthefire

Howdidthestudentgettheuniversityprospectus?doaidwork

Bothsocialfactorsandthedevelopmentof【L31】________havebeenimportantinthegrowthoftourism.Itwouldappea

Searchingfor(alternate)formsofenergydoesnot(necessary)mean(theabandonment)offossilfuelsasanenergy(source).

A、Howhydrothermalventsareformed.B、HowlivingthingsgetenergyfromsunlightC、Theharmfuleffectsofcertainchemicalsin

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不符合先天性眼睑缺损的临床表现的是

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蚕蛹：飞蛾

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仲裁委员会的仲裁裁决作出后，当事人应当履行。当一方当事人不履行仲裁裁决时，另一方可按有关规定向(　　)申请执行。