Penguins do not suffer from the cold in Antarctica because their feathers secrete protective oil.

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问题 Penguins do not suffer from the cold in Antarctica because their feathers secrete protective oil.

选项 A、hide
B、warm
C、produce
D、absorb

答案C

解析分泌

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本试题收录于：职称英语综合类C级题库职称英语分类

职称英语综合类C级

职称英语

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Penguins do not suffer from the cold in Antarctica because their feathers secrete protective oil.

职称英语综合类C级

职称英语

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EnergyCycleDoyoufindgettingupinthemorningsodifficultthatit’spainful?Thismightbecalledlaziness,butDr.Kl

FreezingtoDeathforBeautyPeopleinBeijingwearalotofclothingduringwintertofendoff(抵御)thecold.IntheUnitedS

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BlackHolesMostscientistsagreethatblackholesexistbutarenearlyimpossibletolocate.Ablackholeintheuniverse

Inprevioustimes,whenfreshmeatwasinadequate,pigeonswerekeptbymanyhouseholdsasasourceoffood.

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centralizedschool。Single-parentKidsDoBestSinglemumsarebetteratraisingtheirkidsthantwoparents-atleastintheb

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