иxԇ^(gu)(jng)ЌW(xu)sČW(xu)g(sh)~Rס˼·xٶСѼиԇxČW(xu)g(sh)~Rȫx鿴ϣ(du)ゃЎ
ʲônjW(xu)g(sh)~R
иxn(jng)ЌW(xu)(du)sČW(xu)g(sh)~R^۲@(li)~R(hu)xٶӰw_ʡиxеĆ~Աw(li)һ㹦~R͌W(xu)g(sh)~Rһ㹦~](mi)@ČW(xu)g(sh)磺animal, organ, time W(xu)g(sh)~Rָһ(li)ضW(xu)Ʊ~RijһN(dng)archaeopteryx(ʼB(nio));ijһ(g)Y(ji)(gu)nerve cord((jng))ijһ(g)vʷr(sh)ڣ Cretaceous(o(j))ȵһ㹦~иxе@ЩW(xu)g(sh)~R(du)҂?c)xϵK
w(li)f(shu)xеČW(xu)g(sh)~R֮yҪ(g)棺һ҂俼^(gu)кٕ(hu)ij(g)ضW(xu)Ƶ~R;ڶW(xu)g(sh)~Ryͨ~~Yȥy(c);҂ܸBĝhZ(y)˼֪磺иxгF(xin)^(gu)һNKittiwakeB(nio)hZ(y)ֺt@(g)~҂Ҳ](mi) (tng)^(gu)İČW(xu)g(sh)~R(hu)Ӱ҂xٶҲӰ҂B(ti)
ʲô(hu)ЌW(xu)g(sh)~R
ôȻиһT(mn)Z(y)ԿԇôʲôxЕ(hu)F(xin)˶ČW(xu)g(sh)~R?@еČW(xu)g(sh)~Rʲôԇж(hu)oκν?
ȑ(yng)ԓţ緶(ni)ӢZ(y)(qun)Ŀԇ֮һԇW(xu)g(sh)~RO(sh)Ӌ(j)M(jn)иxһԭ憖(wn)}Ĵ҂ԏиԇı|(zh)(li)˼
иĴ_Z(y)ԿԇиԇĸZ(y)ӢZ(y)DžsӢZ(y)(gu)ҌW(xu)(x)ČW(xu)ô(du)@ЩW(xu)(ж(sh)xƻо)(du)Z(y)Կԇӂ(c)ڜy(c)ԇܷڇ(gu)ĴW(xu)h(hun)沢ҌW(xu)(x)ڴW(xu)һ(g)W(xu)xʲô?@ȻǸNnôᘌ(du)@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)mǧ(y)ӢnиxyȻöf(shu)xиx²һxӢn;ǣи¶xͿ϶ҲyӢn
""Ć(wn)}--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)ȵȟo(w)FMпԇеČW(xu)g(sh)~RDz(sh)HҲǵЧʵġиxµij}}ƫõڿǰ(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)(xi)(hu) (tng)(hu)f(shu)@Ӂ(li)eһČW(xu)g(sh)~RԱCԇr(sh)P(gun)W(xu)g(sh)~RXһ(g)Ҋ(jin)ıﻯW(xu)(li)н(jng)F(xin)carbohydrate(̼ˮ)(dng)(li)н(jng)F(xin)vertebrate((dng))
"|(zh)"Ć(wn)}--(chng)W(xu)g(sh)~R
(dng)҂?c)ڿ?chng)ϕr(sh)(du)вͬW(xu)g(sh)~RČӴҲ"|(zh)"DzͬҪԚw(li)
һ(li)Л](mi)нoP(gun)ጻxġ@(li)W(xu)g(sh)~Rֻ"(li)"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(du)҂ֻҪxһЩB(nio)(li)ͿȻĸs(xi)քe"C" "A" "BK" "N"(li)(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(du)(yng)"A" "BK" "N"
ڶ(li)нoP(gun)ጻxġ@(li)W(xu)g(sh)~R҂HҪ֪"(li)"߀Ҫ(du)жxҕҊ(jin)(du)W(xu)g(sh)~Rxጵ̖(ho)УxľͬλZ(y)ľ䣬Z(y)̖(ho)̖(ho)ȡ
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)Z(y)̖(ho)֮gIJnj(du)cementationĽጶx
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)~R̖(ho)֮еIJ@(du)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)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)Ϳ(chng)ό(du)һ(g)_đB(ti)ǺҪġȻиx鱾|(zh)ĽǶȳl(f)ģMǽW(xu)ČW(xu)(x)^(gu)ôڌW(xu)(x)^(gu)Уxn^(gu)϶кܶg(sh)Z(y)İģ](mi)Ҋ(jin)^(gu)W(xu)(x)ǰİ֪R(sh)׃Ϥ^(gu)̡ͨ^(gu)(du)nxW(xu)(x)ЩW(xu)g(sh)~RŌW(xu)֪R(sh)
ͬиxr(sh)Ҳ(dng)һ(g)nW(xu)(x)^(gu)̡һЩҪg(sh)Z(y)(W(xu)g(sh)~R)n(иx)Ǖ(hu)oጶx@ЩҲnjW(xu)(x)c(din)ҪcnͬnͶx(hu)ͻصw̖(ho)(li)ʾиxУ҂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T(mn)ČW(xu)g(sh)~R