What is the mystery that researchers find hard to explain? Which of the following explanations is given by Jerry Hayes to the p

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问题 What is the mystery that researchers find hard to explain?
Which of the following explanations is given by Jerry Hayes to the phenomenon?

选项 A、Bee-keepers do not understand the honeybee’s behavior.
B、A certain type of chemical destroys the honeybee’s nervous system.
C、Honeybees are infected by unwanted insects.
D、Some crops are poisonous to the honeybees.

答案B

解析本文第五段提到，根据Jerry Hayes的观点，某种杀虫剂可能影响到了蜜蜂的神经系统和记忆，所以答案为B。

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本试题收录于：职称英语理工类B级题库职称英语分类

职称英语理工类B级

职称英语

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What is the mystery that researchers find hard to explain? Which of the following explanations is given by Jerry Hayes to the p

职称英语理工类B级

职称英语

HappyMarriage,HappyHeartHappilymarriedpeoplehavelowerbloodpressure【51】______unhappilymarriedpeopleorsingles,

Intherecentpast,medicalresearchershaveshownthatheartdiseaseisassociatedwithcertainfactorsinourday-to-daylives

A.becauseoftheirsimilarityB.thatwewouldnotbeabletounderstanditatallC.tothepopularizationofEnglishasawor

ProlongingHumanLifeProlonginghumanlifehasincreasedthesizeofthehumanpopulation.Manypeoplealivetodaywouldha

Thereisstillanimmenseamountofworktobedone.

Itisadvisabletowearsunscreenwhenyou’reoutinthesun.

AImportanceofstayingintellectuallyactiveBEffectsofagingonaperson’srecallabilityCShort-termmemoryversuslong

"Heisexemptedfrommilitaryservice,becauseofhisbadsight."

ThePresidentmadeabriefvisittoBeijing.

Sheeventuallymarriedthemostpersistentoneofheradmirers.

生产水泥用的活性混合材料包括()。

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