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ô(yng)(du)иxЌW(xu)g(sh)~R

r(sh)g2021-01-21 13:20:35 иԇ

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^۲ѡ@~R(hu)xٶӰw_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) Cretaceous׈׼o(j)ȵȡһ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҂ܸBĝhZ˼֪磺иxгF(xin)^һNKittiwakeBhZֺt@(g)~҂Ҳ] ^ˣİČW(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)иxһԭ憖}Ĵ҂ԏиԇı|(zh)˼

иĴ_ZԿԇиԇĸZӢZDžsӢZҌW(xu)(x)ČW(xu)ô(du)@ЩW(xu)ж(sh)xƻо(du)ZԿԇ͸ӂ(c)ڜyԇܷڇĴW(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)ˡֻ@ӲW(xu)Ƿܿn

һ(dng)mǧ퓵ӢnиxyȻöfxиx²һxӢnǣи¶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)HҲǵЧʵиxµij}}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)ȡ

|(zh)Ć}--W(xu)g(sh)~R

(dng)҂?c)ڿϕr(sh)(du)вͬW(xu)g(sh)~RČӴΣҲ|(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ͿȻĸsքeC 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)ጻx@W(xu)g(sh)~R҂HҪ֪߀Ҫ(du)жxҕҊ(du)W(xu)g(sh)~Rxጵ̖(ho)УxľͬλZľZ̖(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).

@һУMariaºTerraceꑣP(gun)ČW(xu)g(sh)~R̖(ho)֮еIJ@(du)M(jn)˽ԓµһ(g)}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.

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)Ϳό(du)һ(g)_đB(ti)ǺҪȻиx鱾|(zh)ĽǶȳl(f)ģMǽW(xu).W(xu)(x)^ôڌW(xu)(x)^Уxn^϶кܶg(sh)Zİ]Ҋ^W(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)oጶxģ@ЩҲnjW(xu)(x)c(din)ҪcnͬǣnͶx(hu)ͻصw̖(ho)ʾиx҂Ҫw̖(ho)ȫһӵȡ(du)c(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)(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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