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【单选题】
I was deeply impressed ________ the speech by the mayor of Shanghai before the final voting for EXPO 2010.A.
to
B.
on
C.
over
D.
with
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【简答题】甲氧苄啶的抗菌作用机理是：
【单选题】 — Would you please tell me something about the journalists. — Don’t you remember ___the story yesterday?
A.
telling
B.
being told
C.
to tell
D.
to have told