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ô(yng)иxЌW(xu)g(sh)~R

rg2021-01-21 13:20:35 иԇ ҪͶ

ô(yng)иxЌW(xu)g(sh)~R

ʲônjW(xu)g(sh)~R

ô(yng)иxЌW(xu)g(sh)~R

иxn(jng)ЌW(xu)sČW(xu)g(sh)~R^۲@~RxٶȣӰw_иxеĆ~Աwһ㹦~R͌W(xu)g(sh)~Rһ㹦~]@ČW(xu)g(sh)磺animal, organ, time W(xu)g(sh)~RָһضW(xu)Ʊ~RijһNarchaeopteryxʼBijһY(ji)(gu)nerve cord(jng)ijһvʷr Cretaceous׈׼o(j)ȵȡһ㹦~иxе@ЩW(xu)g(sh)~R׌҂xϵK

wfxеČW(xu)g(sh)~R֮yҪ棺һ҂俼^кٕijضW(xu)Ƶ~RڶW(xu)g(sh)~Ryͨ~~Yȥœy҂ܸBĝhZ˼֪磺иxгF(xin)^һNKittiwakeBhZֺt@~҂Ҳ] ^İČW(xu)g(sh)~RӰ҂xٶҲӰ҂B(ti)

ʲôЌW(xu)g(sh)~R

ôȻиһTZԿԇôʲôxЕF(xin)˶ČW(xu)g(sh)~R@еČW(xu)g(sh)~Rʲôԇжoκνأ

ȑ(yng)ԓ緶(ni)ӢZ(qun)Ŀԇ֮һԇW(xu)g(sh)~RO(sh)ӋM(jn)иxһԭ憖}Ĵ҂ԏиԇı|(zh)˼

иĴ_ZԿԇиԇĸZӢZDžsӢZҌW(xu)(x)ČW(xu)ô@ЩW(xu)ж(sh)xƻоZԿԇ͸ӂ(c)ڜyԇܷڇĴW(xu)h(hun)沢ҌW(xu)(x)ڴW(xu)һW(xu)xʲôأ@ȻǸNnôᘌ@Nиԇx־͑(yng)ԓW(xu)ܷxnW(xu)nw׶ɌW(xu)g(sh)ԵĶνMдČW(xu)g(sh)~R@ӣиxҲF(xin)˶ČW(xu)g(sh)~R(yng)(dng)ֻ@ӲW(xu)Ƿܿn

һmǧ퓵ӢnиxyȻö࣬fxиx²һxӢnǣи¶xͿ϶ҲyӢn

Ć}--ǰW(xu)g(sh)~R

ǰW(xu)g(sh)~Rԓ_и漰wʮ֏VȻƌW(xu)ĿƌW(xu)ƌW(xu)ˇg(sh)ȵȟoFMпԇеČW(xu)g(sh)~RDzHҲǵЧʵиxµij}}ƫõڿǰW(xu)g(sh)~Rr҂ֻھ(x)r}еČW(xu)g(sh)~RM(jn)һHHJ(rn)R~Ŀ(bio) f@ӁeһČW(xu)g(sh)~RԱCԇrP(gun)W(xu)g(sh)~RXһҊıﻯW(xu)н(jng)F(xin)carbohydrate̼ˮн(jng)F(xin)vertebrate׵ȡ

|(zh)Ć}--W(xu)g(sh)~R

(dng)҂ڿϕrвͬW(xu)g(sh)~RČӴҲ|(zh)DzͬҪԚw

һЛ]нoP(gun)ጻx@W(xu)g(sh)~RֻͿԡ

磺Among the species of seabirds that use the windswept cliffs of the Atlantic coast of Canada in the summer to mate, lay eggs, and rear their young are common murres, Atlantic puffins, black-legged kittiwakes, and northern gannets.

common murres, Atlantic puffins, black-legged kittiwakes, northern gannets ҂İČW(xu)g(sh)~R҂ֻҪxһЩBͿԣȻĸsքeC A BK N(bio)ӛ֮P(gun)}r磺

According to the passage, which of the following birds conceal their nest?

(A) Bonapartes gulls

(B) Atlantic puffins

(C) Kittiwake gulls

(D) Northern gannets

BCDxֱӌ(yng)A BK N

ڶнoP(gun)ጻx@W(xu)g(sh)~R҂HҪ֪߀ҪжxҕҊW(xu)g(sh)~Rxጵ̖УxľͬλZľZ̖̖

1. Further burial and slow cementation - a process by which crystals become bound together in a mosaic of intergrown ice crystals - finally produce solid glacial ice.

@ƪ}DZcementatioṇһ|(zh)W(xu)g(sh)Z̖֮gIJnjcementationĽጶx

2. The moon may be divided into two major terrains: the Maria (dark lowlands) and the Terrace (bright highlands).

@һMariaºTerraceꑣP(gun)ČW(xu)g(sh)~R̖֮еIJ@M(jn)˽ጡԓµһ}Ŀ

All of the following are true of the Maria EXCEPT:

(A) They have small craters.

(B) They have been analyzed by astronomers.

(C) They have a rough texture.

(D) They tend to be darker than the terrace.

xDļnjԓԒ̖еČW(xu)g(sh)~ጲM(jn)еһ顣

_đB(ti)挦W(xu)g(sh)~R

W(xu)g(sh)~RȻһЩyƽr(x)Ϳόһ_đB(ti)ǺҪȻиx鱾|(zh)ĽǶȳl(f)ģMǽW(xu).W(xu)(x)^ôڌW(xu)(x)^xn^϶кܶg(sh)Zİ]Ҋ^ģW(xu)(x)ǰİ֪R׃Ϥ^ͨ^nxW(xu)(x)ЩW(xu)g(sh)~RŌW(xu)֪R

ͬӣиxrҲ(dng)һnW(xu)(x)^̡һЩҪg(sh)ZW(xu)g(sh)~Rnиx£Ǖoጶx@ЩҲnjW(xu)(x)cҪcnͬnͶxͻصw̖ʾиxУ҂Ҫw̖ȫһӵȡcW(xu)g(sh)~RĽጶxһЩҪČW(xu)g(sh)~R|(zh)ҲҪô

ֻҪסиxЌW(xu)g(sh)~RĿ챾|(zh)ƽrm(dng)e_đ(yng)ټ_挦đB(ti)ŴҶ܉򹥿иx廨TČW(xu)g(sh)~R

ô(yng)иxЌW(xu)g(sh)~RP(gun)£

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