иxn(jng)ЌW(xu)sČW(xu)g(sh)~R^۲@~RxٶӰw_иxУеĆ~Աwһ㹦~R͌W(xu)g(sh)~Rһ㹦~]@ČW(xu)g(sh)磺animal, organ, timeW(xu)g(sh)~RָһضW(xu)Ʊ~RijһNarchaeopteryx(ʼB);ijһY(ji)(gu)nerve cord((jng))ijһvʷrCretaceous(o(j))ȵȡһ㹦~иxе@ЩW(xu)g(sh)~R҂xϵK
wfxеČW(xu)g(sh)~R֮yҪ棺һ҂俼^кٕijضW(xu)Ƶ~R;ڶW(xu)g(sh)~Ryͨ~~Yȥy;҂ܸBĝhZ˼֪磺иxгF(xin)^һNKittiwakeBhZֺt@~҂Ҳ] ^İČW(xu)g(sh)~RӰ҂xٶȣҲӰ҂B(ti)
ʲôЌW(xu)g(sh)~R
ôȻиһTZԇôʲôxЕF(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)xƻо)ZԿԇӂ(c)ڜyԇܷڇĴW(xu)h(hun)沢ҌW(xu)(x)ڴW(xu)һW(xu)xʲô?@ȻǸNnôᘌ@Nиԇx־͑(yng)ԓW(xu)ܷxnW(xu)nwɌW(xu)g(sh)ԵĶνMдČW(xu)g(sh)~R@ӣиxҲF(xin)˶ČW(xu)g(sh)~R(yng)(dng)ֻ@ӲW(xu)Ƿܿnһmǧ퓵ӢnиxyȻöfxиx²һxӢn;ǣи¶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)һHH"J(rn)R~"Ŀ(bio) f@ӁeһČW(xu)g(sh)~RԱCԇrP(gun)W(xu)g(sh)~RXһҊıﻯW(xu)н(jng)F(xin)carbohydrate(̼ˮ)н(jng)F(xin)vertebrate()
"|(zh)"Ć}--W(xu)g(sh)~R
(dng)҂ڿϕrвͬW(xu)g(sh)~RČӴΣҲ"|(zh)"DzͬҪԚw
һЛ]нoP(gun)ጻxġ@W(xu)g(sh)~Rֻ""Ϳ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҂ֻҪxһЩBͿȻĸsքe"C" "A" "BK""N"(bio)ӛ֮P(gun)}r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
BCDxֱӌ(yng)"A" "BK""N"
ڶнoP(gun)ጻxġ@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 bound together in a mosaic of intergrown ice crystals - finally produce solid glacial ice
@ƪ}DZcementation()һ|(zh)W(xu)g(sh)Z̖֮gIJ֣njcementationĽጶx
2. The moon may be divided into two major terrains: the Maria (dark lowlands) and the Terrace (bright highlands)
@һУMaria(º)Terrace()P(gun)ČW(xu)g(sh)~R̖֮еIJ@M(jn)˽ԓµһ}ĿAll 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)~RȻһЩyȣƽr(x)Ϳόһ_đB(ti)ǺҪȻиx鱾|(zh)ĽǶȳl(f)ģMǽW(xu)ČW(xu)(x)^ôڌW(xu)(x)^xn^У϶кܶg(sh)Zİ]Ҋ^W(xu)(x)ǰİ֪R׃Ϥ^ͨ^nxW(xu)(x)ЩW(xu)g(sh)~RŌW(xu)֪R
ͬиxrҲ(dng)һnW(xu)(x)^һЩҪg(sh)Z(W(xu)g(sh)~R)n(иx)Ǖoጶx@ЩҲnjW(xu)(x)c(din)ҪcnͬǣnͶxͻصw̖ʾиx҂Ҫw̖ȫһӵȡc(din)W(xu)g(sh)~RĽጶxһЩҪČW(xu)g(sh)~R"|(zh)"ҲҪôߡֻҪסиxЌW(xu)g(sh)~RĿ챾|(zh)ƽrm(dng)e_đ(yng)ټ_挦đB(ti)ŴҶ܉иx廨TČW(xu)g(sh)~R