иxn(jng)ЌW(xu)sČW(xu)g(sh)~R^۲@~R(hu)xٶӰw_ʡиxеĆ~Աwһ㹦~R͌W(xu)g(sh)~Rһ㹦~]@ČW(xu)g(sh)磺animal, organ, timeW(xu)g(sh)~RָһضW(xu)Ʊ~RijһN(dng)archaeopteryx(ʼB);ijһ(g)Y(ji)(gu)nerve cord((jng))ijһ(g)vʷr(sh)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] ^ˣİČW(xu)g(sh)~R(hu)Ӱ҂xٶҲӰ҂B(ti)
ʲô(hu)ЌW(xu)g(sh)~R
ôȻиһTZԇôʲôxЕ(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)ԵĶνMɣдČW(xu)g(sh)~R@иxҲF(xin)˶ČW(xu)g(sh)~R(yng)(dng)ֻ@ӲW(xu)Ƿܿnһ(dng)mǧ퓵ӢnиxyȻö࣬fxиx²һxӢn;и¶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}}ƫõġڿǰ(ch)W(xu)g(sh)~Rr(sh)҂ֻھ(x)r(sh)}еČW(xu)g(sh)~RM(jn)һHH"J(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)carbohydrate(̼ˮ)(dng)н(jng)F(xin)vertebrate((dng))
"|(zh)"Ć}--W(xu)g(sh)~R
(dng)҂ڿϕr(sh)вͬW(xu)g(sh)~RČӴҲ"|(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 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(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)~Rxጵ̖(ho)Уxľ䣬ͬλZľZ̖(ho)̖(ho)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(g)|(zh)W(xu)g(sh)Z̖(ho)֮gIJnjcementationĽጶx
2. The moon may be divided into two major terrains: the Maria (dark lowlands) and the Terrace (bright highlands)
@һMaria(º)Terrace()P(gun)ČW(xu)g(sh)~R̖(ho)֮еIJ@M(jn)˽ԓµһ(g)}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
x(xing)DļnjԓԒ̖(ho)еČW(xu)g(sh)~ጲM(jn)еһ(g)
_đB(ti)挦W(xu)g(sh)~R
W(xu)g(sh)~RȻһЩyȣƽr(sh)(x)Ϳόһ(g)_đB(ti)ǺҪȻиx鱾|(zh)ĽǶȳl(f)ģMǽW(xu)ČW(xu)(x)^ôڌW(xu)(x)^xn^϶кܶg(sh)Zİ]Ҋ^W(xu)(x)ǰİ֪R(sh)׃Ϥ^ͨ^nxW(xu)(x)ЩW(xu)g(sh)~RŌW(xu)֪R(sh)
ͬӣиxr(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)ͻصw̖(ho)ʾиx҂Ҫw̖(ho)ȫһӵȡc(din)W(xu)g(sh)~RĽጶxһЩҪČW(xu)g(sh)~R"|(zh)"ҲҪôֻҪסиxЌW(xu)g(sh)~RĿ챾|(zh)ƽr(sh)m(dng)eۣ_đ(yng)ټ_挦đB(ti)ŴҶ܉иx廨TČW(xu)g(sh)~R