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иx`Wg(sh)~R

l(f)rg:2017-01-04Դ:WW(wng)

иxn(jng)ЌWsČWg(sh)~R^۲@~RxٶӰw_ʡиxеĆ~Աwһ㹦~R͌Wg(sh)~Rһ㹦~]@ČWg(sh)磺animal, organ, timeWg(sh)~RָһضWƱ~RijһNarchaeopteryx(ʼB);ijһY(ji)(gu)nerve cord((jng))ijһvʷrCretaceous(׈׼o)ȵȡһ㹦~иxе@ЩWg(sh)~R׌҂xϵK

wfxеČWg(sh)~R֮yҪ棺һ҂俼^кٕijضWƵ~R;ڶWg(sh)~Ryͨ~~Yȥœy;҂ܸBĝhZ˼֪磺иxгF(xin)^һNKittiwakeBhZֺt@~҂Ҳ] ^İČWg(sh)~RӰ҂xٶҲӰ҂B(ti)

ʲôЌWg(sh)~R

ôȻиһTZԇôʲôxЕF(xin)˶ČWg(sh)~R?@еČWg(sh)~Rʲôԇжoκν?

ȑԓţ緶(ni)ӢZ(qun)Ŀԇ֮һԇWg(sh)~ROӋMиxһԭ憖}Ĵ҂ԏиԇı|(zh)˼иĴ_ZԿԇиԇĸZӢZDžsӢZҌWČWô@ЩW(ж(sh)xƻо)ZԿԇ͸ӂ(c)ڜyԇܷڇĴWh(hun)沢ҌWڴWһWxʲô?@ȻǸNnôᘌ@Nиԇx־͑ԓWܷxnWnw׶ɌWg(sh)ԵĶνMɣдČWg(sh)~R@ӣиxҲF(xin)˶ČWg(sh)~Rֻ@ӲWǷܿnһmǧ퓵ӢnиxyȻö࣬fxиx²һxӢn;и¶xͿ϶ҲyӢn

""Ć}--ǰWg(sh)~R

ǰWg(sh)~Rԓ_и漰wʮ֏VȻƌWĿƌWƌWˇg(sh)ȵȟoFMпԇеČWg(sh)~RDzHҲǵЧʵġиxµij}}ƫõڿǰWg(sh)~Rr҂ֻھr}еČWg(sh)~RMһHH"JR~"Ŀ f@ӁeһČWg(sh)~RԱCԇrP(gun)Wg(sh)~RXһҊıﻯWн(jng)F(xin)carbohydrate(̼ˮ)н(jng)F(xin)vertebrate(׵)

"|(zh)"Ć}--Wg(sh)~R

҂ڿϕrвͬWg(sh)~RČӴҲ"|(zh)"DzͬҪԚw

һЛ]нoP(gun)ጻx@Wg(sh)~Rֻ""Ϳ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"҂İČWg(sh)~R҂ֻҪxһЩBͿȻĸsքe"C" "A" "BK""N"ӛ֮P(gun)}r磺

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

(A) Bonaparte's gulls

(B) Atlantic puffins

(C) Kittiwake gulls

(D) Northern gannets

BCDxֱӌ"A" "BK""N"

ڶнoP(gun)ጻx@Wg(sh)~R҂HҪ֪""߀ҪжxҕҊWg(sh)~Rxጵ̖УxľͬλZľ䣬Z̖̖磺

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}DZcementation()һ|(zh)Wg(sh)Z̖֮gIJnjcementationĽጶx

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

@һMaria(º)Terrace()P(gun)ČWg(sh)~R̖֮еIJ@M˽ԓµһ}ĿУAll 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

xDļnjԓԒ̖еČWg(sh)~ጲMеһ

_đB(ti)挦Wg(sh)~R

Wg(sh)~RȻһЩyƽrͿόһ_đB(ti)ǺҪġȻиx鱾|(zh)ĽǶȳl(f)ģMǽWČW^ôڌW^xn^У϶кܶg(sh)Zİ]Ҋ^Wǰİ֪R׃Ϥ^̡ͨ^nxWЩWg(sh)~RŌW֪R

ͬиxrҲһnW^һЩҪg(sh)Z(Wg(sh)~R)n(иx)Ǖoጶx@ЩҲnjWcҪ⡣cnͬnϣͶxͻصw̖ʾиx҂Ҫw̖ȫһӵȡcWg(sh)~RĽጶxһЩҪČWg(sh)~R"|(zh)"ҲҪôֻҪסиxЌWg(sh)~RĿ챾|(zh)ƽrmeۣ_đټ_挦đB(ti)ŴҶ܉򹥿иx廨TČWg(sh)~R

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