The feathers of birds (not only) protect their skin from injury and conserve (bo

游客2024-01-05 41

问题 The feathers of birds (not only) protect their skin from injury and conserve (body heat), but also (function) in flight, courtship, camouflage, and sensory (perceptive).

选项 A、not only
B、body heat
C、function
D、perceptive

答案 D

解析

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The feathers of birds (not only) protect their skin from injury and conserve (bo

Protectivebehaviorsof(amphibians)includehiding(in)thepresenceofdanger

Thefeathersofbirds(notonly)protecttheirskinfrominjuryandconserve(bo

Thebooby’sbrownfeathersare______itsbluefeetarebright.A、verydullB、dulle

TheouterlayerofthebarkAinsulatingthetreefromtheBweather,protectsthe

SometimesAlyingisanBessentialweaponforself-protection,andthismaybeCe

_____theabilityofbirdstomovethroughtheairusingwingsandfeathers.A、Fli

Besidesteachingteenagerstoprotecttheircomputers,thecourseopenstheirim

ThefootballstarsufferedankleinjuryduringEngland’sWorldCupquarter-final

Apigmentcalledmelaninprotectsthe______layersofskinfromsunrays.A、unde

Apigmentcalledmelaninprotectsthe______layersofskinfromsunrays.A、unde

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与阿托品M受体阻断作用无关的是A.腺体分泌减少B.胃液分泌减少C.眼调节麻痹D.

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