иxԇ^(jng)ЌW(xu)sČW(xu)g(sh)~Rס˼·xٶȣСѼиԇxČW(xu)g(sh)~Rȫx鿴ϣゃЎ
ʲônjW(xu)g(sh)~R
иxn(jng)ЌW(xu)sČW(xu)g(sh)~R^۲@~R(hu)xٶӰw_иxеĆ~Աwһ㹦~R͌W(xu)g(sh)~Rһ㹦~]@ČW(xu)g(sh)磺animal, organ, time W(xu)g(sh)~RָһضW(xu)Ʊ~RijһN(dng)archaeopteryx(ʼB);ijһ(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^кٕ(hu)ij(g)ضW(xu)Ƶ~R;ڶW(xu)g(sh)~Ryͨ~~Yȥy;҂ܸ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)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)xƻо)ZԿԇӂ(c)ڜyԇܷڇĴW(xu)h(hun)沢ҌW(xu)(x)ڴW(xu)һ(g)W(xu)xʲô?@ȻǸNnôᘌ@Nиԇx־͑(yng)ԓW(xu)ܷxnW(xu)nwɌW(xu)g(sh)ԵĶνMдČW(xu)g(sh)~R@иxҲF(xin)˶ČW(xu)g(sh)~R(yng)(dng)ֻ@ӲW(xu)Ƿܿn
һ(dng)mǧ퓵ӢnиxyȻö࣬fxиx²һxӢn;и¶xͿ϶ҲyӢn
""Ć}--ǰW(xu)g(sh)~R
ǰW(xu)g(sh)~Rԓ_и漰wʮ֏VȻƌW(xu)ĿƌW(xu)(hu)ƌW(xu)ˇg(sh)ȵȟoFMпԇеČW(xu)g(sh)~RDz(sh)HҲǵЧʵиxµij}}ƫõڿǰW(xu)g(sh)~Rr(sh)҂ֻھ(x)r(sh)}еČW(xu)g(sh)~RM(jn)һHH"J(rn)R~"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)carbohydrate(̼ˮ)(dng)н(jng)F(xin)vertebrate((dng))
"|(zh)"Ć}--W(xu)g(sh)~R
(dng)҂ڿϕr(sh)вͬW(xu)g(sh)~RČӴΣҲ"|(zh)"DzͬҪԚw
һЛ]нoP(gun)ጻx@W(xu)g(sh)~Rֻ""Ϳԡ
磺Among the species of seabirds that use the windswept cliffs of the Atlantic coast ofCanada in the summer to mate, lay eggs, and rear their young are common murres, Atlanticpuffins, black-legged kittiwakes, and northern gannets.
"common murres", "Atlantic puffins", "black-legged kittiwakes", "northern gannets" ҂İČW(xu)g(sh)~R҂ֻҪxһЩBͿȻĸsքe"C" "A" "BK" "N"(bio)ӛ֮P(gun)}r(sh)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
BCDx(xing)ֱӌ(yng)"A" "BK" "N"
ڶнoP(gun)ጻx@W(xu)g(sh)~R҂HҪ֪""߀ҪжxҕҊW(xu)g(sh)~Rxጵ̖Уxľ䣬ͬλZľZ̖̖ȡ
磺
1. Further burial and slow cementation - a process by which crystals become boundtogether in a mosaic of intergrown ice crystals - finally produce solid glacial ice.
@ƪ}DZcementation()һ(g)|(zh)W(xu)g(sh)Z̖֮gIJnjcementationĽጶx
2. The moon may be divided into two major terrains: the Maria (dark lowlands) and theTerrace (bright highlands).
@һУMaria(º)Terrace()P(gun)ČW(xu)g(sh)~R̖֮еIJ@M(jn)˽ጡԓµһ(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)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)ČW(xu)(x)^ôڌW(xu)(x)^xn^϶кܶg(sh)Zİ]Ҋ^ģW(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)Z(W(xu)g(sh)~R)n(иx)Ǖ(hu)oጶx@ЩҲnjW(xu)(x)c(din)ҪcnͬnͶx(hu)ͻصw̖ʾиxУ҂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