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ô(yng)иxЌW(xu)g(sh)~R

r(sh)g2021-01-21 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@~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~RijһNarchaeopteryxʼBijһ(g)Y(ji)(gu)nerve cord(jng)ijһ(g)vʷr(sh)ڣ Cretaceous׈׼o(j)ȵһ㹦~иxе@ЩW(xu)g(sh)~R׌҂xϵK

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

ʲôЌW(xu)g(sh)~R

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

ȑ(yng)ԓ緶(ni)ӢZ(qun)Ŀԇ֮һԇW(xu)g(sh)~RO(sh)Ӌ(j)M(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)һ(g)W(xu)xʲô@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

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(sh)҂ֻھ(x)r(sh)}еČW(xu)g(sh)~RM(jn)һHHJ(rn)R~Ŀ(bio) f@ӁeһČW(xu)g(sh)~RԱCԇr(sh)P(gun)W(xu)g(sh)~RXһ(g)ҊıﻯW(xu)н(jng)F(xin)carbohydrate̼ˮн(jng)F(xin)vertebrate׵

|(zh)Ć}--W(xu)g(sh)~R

(dng)҂ڿϕr(sh)вͬW(xu)g(sh)~RČӴҲ|(zh)DzͬҪԚw

һЛ]нoP(gun)ጻxġ@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(sh)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

BCDx(xing)ֱӌ(yng)A BK N

ڶнoP(gun)ጻx@W(xu)g(sh)~R҂HҪ֪߀ҪжxҕҊW(xu)g(sh)~Rxጵ̖УxľͬλZľ䣬Z̖̖ȡ

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(g)|(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(g)}ĿУ

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.

x(xing)DļnjԓԒ̖еČW(xu)g(sh)~ጲM(jn)еһ(g)

_đB(ti)挦W(xu)g(sh)~R

W(xu)g(sh)~RȻһЩyƽr(sh)(x)Ϳόһ(g)_đB(ti)ǺҪȻиx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

ͬиxr(sh)Ҳ(dng)һ(g)nW(xu)(x)^̡һЩҪg(sh)ZW(xu)g(sh)~Rnиx£Ǖoጶxģ@ЩҲnjW(xu)(x)c(din)ҪcnͬnͶxͻصw̖ʾиx҂Ҫw̖ȫһӵȡc(din)W(xu)g(sh)~RĽጶxһЩҪČW(xu)g(sh)~R|(zh)ҲҪô

ֻҪסиxЌW(xu)g(sh)~RĿ챾|(zh)ƽr(sh)m(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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