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ô(yng)(du)иxЌW(xu)g(sh)~R

r(sh)g2021-01-21 13:20:35 иԇ ҪͶ

ô(yng)(du)иxЌW(xu)g(sh)~R

ʲônjW(xu)g(sh)~R

ô(yng)(du)иxЌW(xu)g(sh)~R

иxnϣ(jng)ЌW(xu)(du)sČW(xu)g(sh)~R^۲@~R(hu)xٶȣӰw_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~RijһN(dng)archaeopteryxʼBijһ(g)Y(ji)(gu)nerve cord(jng)ijһ(g)vʷr(sh)ڣ Cretaceous׈׼o(j)ȵһ㹦~иxе@ЩW(xu)g(sh)~R׌(du)҂?c)xϵK

wfxеČW(xu)g(sh)~R֮yҪ(g)棺һ҂俼^кٕ(hu)ij(g)ضW(xu)Ƶ~RڶW(xu)g(sh)~Ryͨ~~Yȥœy(c)҂ܸBĝhZ˼֪磺иxгF(xin)^һNKittiwakeBhZֺt@(g)~҂Ҳ] ^İČW(xu)g(sh)~R(hu)Ӱ҂xٶҲӰ҂B(ti)

ʲô(hu)ЌW(xu)g(sh)~R

ôȻиһTZԿԇôʲôxЕ(hu)F(xin)˶ČW(xu)g(sh)~R@еČW(xu)g(sh)~Rʲôԇж(hu)oκν

ȑ(yng)ԓţ緶(ni)ӢZ(qun)Ŀԇ֮һԇW(xu)g(sh)~RO(sh)Ӌ(j)M(jn)иxһԭġ憖}Ĵ҂ԏиԇı|(zh)˼

иĴ_ZԿԇиԇĸZӢZDžsӢZҌW(xu)(x)ČW(xu)ô(du)@ЩW(xu)ж(sh)xƻо(du)ZԿԇ͸ӂ(c)ڜy(c)ԇܷڇĴW(xu)h(hun)沢ҌW(xu)(x)ڴW(xu)һ(g)W(xu)xʲô@ȻǸNnôᘌ(du)@Nиԇx־͑(yng)ԓW(xu)ܷxnW(xu)nw׶ɌW(xu)g(sh)ԵĶνMɣдČW(xu)g(sh)~R@иxҲF(xin)˶ČW(xu)g(sh)~R(yng)(dng)ֻ@ӲW(xu)Ƿܿn

һ(dng)mǧ퓵ӢnиxyȻöfxиx²һxӢnи¶xͿ϶ҲyӢn

Ć}--ǰ(ch)W(xu)g(sh)~R

ǰ(ch)W(xu)g(sh)~Rԓ_и漰wʮ֏VȻƌW(xu)ĿƌW(xu)(hu)ƌW(xu)ˇg(sh)ȵȟoFMпԇеČW(xu)g(sh)~RDz(sh)HģҲǵЧʵиxµij}}ƫõڿǰ(ch)W(xu)g(sh)~Rr(sh)҂ֻھ(x)r(sh)}еČW(xu)g(sh)~RM(jn)һHHJ(rn)R(sh)~Ŀ(bio)(hu)(hu) (hu)f@ӁeһČW(xu)g(sh)~RԱCԇr(sh)P(gun)W(xu)g(sh)~RXһ(g)ҊıﻯW(xu)н(jng)F(xin)carbohydrate̼ˮ(dng)н(jng)F(xin)vertebrate׵(dng)

|(zh)Ć}--(chng)W(xu)g(sh)~R

(dng)҂?c)ڿ?chng)ϕr(sh)(du)вͬW(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(du)҂ֻ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(du)(yng)A BK N

ڶнoP(gun)ጻxġ@W(xu)g(sh)~R҂HҪ֪߀Ҫ(du)жxҕҊ(du)W(xu)g(sh)~Rxጵ̖(ho)УxľͬλZľ䣬Z̖(ho)̖(ho)

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)Z̖(ho)֮gIJnj(du)cementationĽጶx

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)~R̖(ho)֮еIJ@(du)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)Dļnj(du)ԓԒ̖(ho)еČW(xu)g(sh)~ጲM(jn)еһ(g)

_đB(ti)挦(du)W(xu)g(sh)~R

W(xu)g(sh)~RȻһЩyȣƽr(sh)(x)Ϳ(chng)ό(du)һ(g)_đB(ti)ǺҪȻиx鱾|(zh)ĽǶȳl(f)ģMǽW(xu).W(xu)(x)^ôڌW(xu)(x)^Уxn^϶кܶg(sh)Zİ]Ҋ^ģW(xu)(x)ǰİ֪R(sh)׃Ϥ^ͨ^(du)nxW(xu)(x)ЩW(xu)g(sh)~RŌW(xu)֪R(sh)

ͬиxr(sh)Ҳ(dng)һ(g)nW(xu)(x)^һЩҪg(sh)ZW(xu)g(sh)~Rnиx£Ǖ(hu)oጶx@ЩҲnjW(xu)(x)c(din)ҪcnͬnϣͶx(hu)ͻصw̖(ho)ʾиx҂Ҫw̖(ho)ȫһӵȡ(du)c(din)W(xu)g(sh)~RĽጶxһЩҪČW(xu)g(sh)~R|(zh)ҲҪôߡ

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

ô(yng)(du)иxЌW(xu)g(sh)~RP(gun)£

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