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ô(yng)иxЌW(xu)g(sh)~R

rg2021-01-21 13:20:35 иԇ

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@~RxٶӰw_ʡиxеĆ~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)ȵһ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)~Rʲôԇжoκν

ȑ(yng)ԓţ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)xʲô@ȻǸNnôᘌ@Nиԇx־͑(yng)ԓW(xu)ܷxnW(xu)nw׶ɌW(xu)g(sh)ԵĶνMɣдČW(xu)g(sh)~R@ӣиxҲF(xin)˶ČW(xu)g(sh)~R(yng)(dng)ֻ@ӲW(xu)Ƿܿn

һmǧ퓵ӢnиxyȻöfxиx²һxӢnи¶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)~RDz(sh)HģҲǵЧʵиxµij}}ƫõġڿǰW(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)~RXһҊıﻯW(xu)н(jng)F(xin)carbohydrate̼ˮн(jng)F(xin)vertebrate׵

|(zh)Ć}--W(xu)g(sh)~R

(dng)҂ڿϕrвͬW(xu)g(sh)~RČӴҲ|(zh)DzͬҪԚw

һЛ]нoP(gun)ጻx@W(xu)g(sh)~RֻͿ

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)ጻxġ@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)˽ԓµһ}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

_đB(ti)挦W(xu)g(sh)~R

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

ͬиxrҲ(dng)һnW(xu)(x)^һЩҪg(sh)ZW(xu)g(sh)~Rnиx£Ǖoጶx@ЩҲnjW(xu)(x)c(din)ҪcnͬnͶxͻصw̖ʾиxУ҂Ҫw̖ȫһӵȡc(din)W(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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