题目内容
（请给出正确答案）
A.A. one fourth
B.B. one fourth of
C.C. one four of
D.D. the one fourth
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We now know that about ____ of all the kinds of seaweed are animals.
A: one four
B: once four
C: once fourth
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From the passage, we know that Facebook is now faced with the problem that ______.
A．less and less people are paying visits to it
B．people are cheating about their real gender on it
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From the last paragraph, we know that
A．e-books are now sold together with the paper versions.
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D．publishers have hired different editors in different areas.
From what we read, we know that now Cambridge ______.
A．is visited by international tourists
B．is a city of growing population
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A.It’s not possible to predict the futur
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C.Time travel may one day be possibl
D.We now know Einstein was right about everythin
E.
听力原文：Susan is fluent in Spanish now that she has been to Mexico.
What do we know about Susan？
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B．She doesn't know Spanish.
C．She improved her Spanish in Mexico.
D．She knew Spanish before going to Mexico.
A.brown
B.salty
C.pretty
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We can know from the passage that ______.
A．the anti-smoking rinse might also be effective in reducing bad breath
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From the first paragraph, we know ______ .
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