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W(xu)W(wng) > иԇ > иԇxA(ch)Ӗ(xn)

иԇxA(ch)Ӗ(xn)

l(f)rg:2017-08-02݋

Ӗ(xn)иxĻA(ch)?СѼиԇxA(ch)Ӗ(xn)x

P(gun)ھӌӴ߉݋P(gun)ϵͻƷ

1|TPOԭ

ֱӶ|TPOx˽¾ӵĶc(f)sȡܶr҂ͨ^һЩA(ch)n(¸ȵńa(b)ӢZ(Ʒn)A(ch))J(rn)鲢ȡ҂ȫTPOžزģ侫xƽĶՓиy߀DZ^m(@҂횰}@h(hun)(ji)޳)ȫԱӢZA(ch)mеĺܡ

2 ՌW(xu)ƷLy

(j)TõTPOLyزģھеP(gun)ϵ~R߉݋~RԼՌW(xu)ƷTPOxԭı

+ƪ½Y(ji)(gu)

҂+ƪµĽY(ji)(gu)ڴ֮ǰ҂һ±оӵ˼(1)@ȻCDz(2)ͨ^ͨ^w(3)C߀[زסIJ(4)c...ӲͬһֻL~Lಢ(5)C˽ͨ^ʯӛ䛫@õġ(6)ߵIJ()CôB?(7)ֱܳʬF(xin)朽ӵĻʯűl(f)F(xin)

ǰ䣬ڏ(qing){(dio)CIJ;ľ_ʼ漰Դ};f˽Դ};;oԵO(sh);߾˽;Ĵ_J(rn)ʹ_

ԶY(ji)(gu)֞ɲ֣һCIJ;ͨ^ʯ˽C“(lin)ϵƪ(̎ƪ±F(xin)(bio)})͸@CԴCIJ(҂Ҫͨ^ʯJ(rn)RC)P(gun)I~ҲCmammalknow it through fossil

(bio)}ƪJ(rn)Rķ

1W(xu)Д혳D(zhun)ۡȡеȻ߉݋P(gun)ϵ

2W(xu)ľc֮gP(gun)ϵBӆλ^

3һЩõ߉݋P(gun)ϵ~RP(gun)ϵD(zhun)Qж

4ĹնP(gun)ϵD

ӌӴθ½Y(ji)(gu)˽ҿɂ}ĿԾͿԅӻ҂ڴxУxe2λͳһġ~RփԡŶ

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_schedule

(jin)ÿ쾫xՌW(xu)ƷTPOԭģ(f)(x)얹~y~ӽY(ji)(gu)Լƪ(jin)ֶʮ죬һͻwM(jn)Ŷ~

2 

oԼһW(xu)(x)ÿһΕrgһyԇz(yn)һԼijɹM(jn)͹ĄԼ(jin)ȥ;ԼĆ}~

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W(xu)YӍW(xu)M(fi)W(xu)CW(xu)W(xu)W(xu)(jng)(yn)W(xu)ԇՈ
c(din)
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