According to Darwin, why do people laugh?A、Laugh is a survival technique for bab

游客2023-11-05 39

问题 According to Darwin, why do people laugh?

选项 A、Laugh is a survival technique for babies.
B、They laugh to ease hostilities.
C、They laugh to make parents feel relaxed.
D、They laugh to fight off disease.

答案 A

解析事实推理题。达尔文认为婴儿的微笑是进化过程中形成的对父母的“奖励”，父母陶醉于婴儿的微笑，这鼓励他们继续照顾婴儿。我们可以推测出微笑是婴儿的生存技巧。所以选择A。

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According to Darwin, why do people laugh?A、Laugh is a survival technique for bab

WhathashappenedinVenezuela,accordingtothenews?[originaltext]Apla

AccordingtotheAmericanfederalgovernment,residentsofHawaiihavethelonge

Whatisthenewsmainlyabout?[br][originaltext]TheDemocraticPeople’sR

Whatisthenewsmainlyabout?[originaltext]TheDemocraticPeople’sRepubli

Accordingtothenews,whatwasthefirstrealchallengeforMr.Baradei?[orig

Howmanypeoplehaveheldadomonstration?[br][originaltext]About1,000su

Accordingtothenews,whatistheUSmanufacturers’concernabouttheChinese

Accordingtotheman,whydomodernbooksdecay?[br][originaltext]W:Excusem

Accordingtotheman,whydomodernbooksdecay?[br][originaltext]W:Excusem

Thestorewas_________peopleshoppingforhouseholdwares.A、occupiedbyB、seiz

ToaWaterfowlwaswrittenby______,whowastheleadingpoetoftheRomanticPe

文成公主是西藏历史(Tibetanhistory)上最受人爱戴的皇后之一。这位美丽聪明的唐朝(theTangDynasty)公主于640年离开长安到

如图，AB与半径为1的⊙O相切于A点，AB＝23，AB与⊙O的弦AC的夹角为50

下列各项，关于肺结核的传播途径描述错误的是()A.次要感染途径是消化道

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