Ӗ(xn)иxĻA(ch)?СѼиԇxA(ch)Ӗ(xn)x
P(gun)ھӌӴΡ߉P(gun)ϵͻƷ
1|TPOԭ
ֱӶ|TPOx˽¾ӵĶc(f)sȡܶr(sh)҂(hu)ͨ^(gu)һЩA(ch)n(¸ȵń(li)a(b)ӢZ(y)(Ʒn)A(ch))J(rn)鲢ȡ҂ȫTPOز侫xƽĶՓиy߀DZ^m(@҂횰}@(g)h(hun)(ji))ȫԱӢZ(y)A(ch)mеĺ
2 ՌW(xu)ƷL(zhng)y
(j)TõTPOL(zhng)yزھеP(gun)ϵ~R߉~RԼՌW(xu)ƷTPOxԭı
+ƪ½Y(ji)(gu)
҂(li)+ƪµĽY(ji)(gu)ڴ֮ǰ҂(li)һ±оӵ˼(1)@ȻCDz(dng)(2)ͨ^(gu)Σͨ^(gu)w̡(3)C߀[زסIJ(dng)(4)c...ӲͬһֻL~(y)L(zhng)ಢ(5)(du)C˽ͨ^(gu)ʯӛ䛫@õ(6)ߵIJ(dng)()CôB(li)?(7)ֱܳʬF(xin)朽ӵĻʯűl(f)F(xin)
ǰڏ(qing){(dio)CIJ(dng);ľ_(ki)ʼ漰Դ(wn)};f(shu)˽Դ(wn)};;oԵO(sh)(wn);߾˽;Ĵ_J(rn)ʹ_
ԶY(ji)(gu)֞ɲ֣һCIJ(dng);ͨ^(gu)ʯ(li)˽C(lin)ϵƪ(̎ƪ±F(xin)(bio)})@CԴCIJ(dng)ԣ(҂Ҫͨ^(gu)ʯJ(rn)R(sh)C)P(gun)I~ҲǣCmammalknow it through fossil
(bio)}ƪJ(rn)R(sh)ķ
1W(xu)(hu)Д혳СD(zhun)(du)еȻ߉P(gun)ϵ
2W(xu)(hu)ľc֮gP(gun)ϵBӆλ(li)^
3һЩõ߉P(gun)ϵ~RP(gun)ϵD(zhun)Qж
4ĹնP(gun)ϵD
(du)ӌӴθ½Y(ji)(gu)˽ҿɂ(g)}ĿԾͿԅӻ(dng)҂(hu)ڴ(du)xУxe2λͳһġ~Rփ(c)Ŷ
1. In paragraph 1, what does the author say about the presence of a blowhole in cetaceans?
It clearly indicates that cetaceans are mammals.
It cannot conceal the fact that cetaceans are mammals.
It is the main difference between cetaceans and land-dwelling mammals.
It cannot yield clues about the origins of cetaceans.
2. Which of the following can be inferred from paragraph 1 about early sea otters?
It is not difficult to imagine what they looked like.
There were great numbers of them.
They lived in the sea only.
They did not leave many fossil remains.
(qing)xA(ch)Ҏ(gu)
1 oԼһ(g)_schedule
(jin)ÿ쾫xՌW(xu)ƷTPOԭ(f)(x)얹~y~ӽY(ji)(gu)Լƪ(jin)ֶʮһ(hu)ͻwM(jn)Ŷ~
2 ģ
oԼһ(g)W(xu)(x)ÿһΕr(sh)gһ(g)y(c)ԇz(yn)һԼijɹM(jn)Ą(l)Լ(jin)ȥ;ԼĆ(wn)}~