иxԇ^У(jng)ЌW(xu)sČW(xu)g(sh)~Rס˼·xٶСѼиԇxČW(xu)g(sh)~Rȫx鿴ϣゃЎ
ʲônjW(xu)g(sh)~R
иxn(jng)ЌW(xu)sČW(xu)g(sh)~R^۲ѡ@~RxٶӰw_ʡиxеĆ~Աwһ㹦~R͌W(xu)g(sh)~Rһ㹦~]@ČW(xu)g(sh)磺animal, organ, time W(xu)g(sh)~RָһضW(xu)Ʊ~RijһNarchaeopteryx(ʼB);ijһY(ji)(gu)nerve cord((jng))ijһvʷr Cretaceous(o)ȵһ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] ^ˣİČW(xu)g(sh)~RӰ҂xٶҲӰ҂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)ӋMиxһԭ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@иxҲF(xin)˶ČW(xu)g(sh)~R(yng)(dng)ֻ@ӲW(xu)Ƿܿn
һmǧ퓵ӢnиxyȻöfxиx²һxӢn;и¶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)~RDzHģҲǵЧʵиxµij}}ƫõġڿǰW(xu)g(sh)~Rr҂ֻھ(x)r}еČW(xu)g(sh)~RMһHH"JR~"Ŀ 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)ጻx@W(xu)g(sh)~Rֻ""Ϳ
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҂ֻҪxһЩBͿԣȻĸsքe"C" "A" "BK" "N"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"ɡ
ڶнoP(gun)ጻx@W(xu)g(sh)~R҂HҪ֪""߀ҪжxҕҊW(xu)g(sh)~Rxጵ̖УxľͬλZľ䣬Z̖̖
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|(zh)W(xu)g(sh)Z̖֮gIJ֣njcementationĽጶx
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˽ԓµһ}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.
xDļnjԓԒ̖еČW(xu)g(sh)~ጲMеһ顣
_đB(ti)挦W(xu)g(sh)~R
W(xu)g(sh)~RȻһЩyƽr(x)Ϳόһ_đB(ti)ǺҪġȻиx鱾|(zh)ĽǶȳl(f)ģMǽW(xu)ČW(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
ͬиxrҲ(dng)һnW(xu)(x)^һЩҪg(sh)Z(W(xu)g(sh)~R)n(иx)Ǖoጶx@ЩҲnjW(xu)(x)cҪcnͬnͶxͻصw̖ʾиx҂Ҫw̖ȫһӵȡcW(xu)g(sh)~RĽጶxһЩҪČW(xu)g(sh)~R"|(zh)"ҲҪôߡ
ֻҪסиxЌW(xu)g(sh)~RĿ챾|(zh)ƽrm(dng)eۣ_đ(yng)ټ_挦đB(ti)ŴҶ܉иx廨TČW(xu)g(sh)~R