【单选题】
单项选择
单项选择
【单选题】By thE EnD oF thE 1950"s, thE suBurBAn populAtion oF thE unitED stAtEs totAlED 60 million, ApproximAtEly EquivAlEnCE to thE urBAn ArEAs oF thE Country.
【单选题】 thE rounD, hArD-shEllED nuts oF thE mACADAmiA trEE grow in ClustErs AnD ArE CovErED with husks whAt split whEn thE nuts ArE ripE
【单选题】 CorAl FormAtions hAvE known As Fringing rEEFs ArE loCAtED ClosE to shorE, sEpArAtED From lAnD only By shAllow wAtEr.
【单选题】 The hermit crab, a crustacean that uses an empty shell as a portable refuge to coverits soft abdomen, changes shellsas grows.
【单选题】 In Earth's infancy, its surface was warm enough for life ____ the young Sun was fainter than it is today.
A.( in spite of
B.( whether
C.( neither of which
D.( even though
A.( in spite of
B.( whether
C.( neither of which
D.( even though
【单选题】 The author mentions "wheal and wheat flour" in line 22 in order to
A.( show that Americans exported more agricultural products than they imported
B.( show the increase in the amount of wheat products exported
C.( demonstrate file importance of cotton among American export products
D.( demonstrate that wheat farming was becoming more profitable
A.( show that Americans exported more agricultural products than they imported
B.( show the increase in the amount of wheat products exported
C.( demonstrate file importance of cotton among American export products
D.( demonstrate that wheat farming was becoming more profitable
【单选题】 Flaubert est reconnu pour son style ____________ .
A.bref
B.court
C.concis
D.courir
A.bref
B.court
C.concis
D.courir
【单选题】 Compared to the tail of electrically charged atoms, the tail of neutral dust particles is relatively
A.( long
B.( curved
C.( unpredictable
D.( bright
A.( long
B.( curved
C.( unpredictable
D.( bright
【单选题】 (Some fish) have whiskers, which are sensory organs used (for touching) and tasting, and which (are helpful) when (are they) searching for food in sand and mud.
A.Some fish
B.for touching
C.are helpful
D.are they
A.Some fish
B.for touching
C.are helpful
D.are they
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