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【单选题】
Qestion 5 of Part 1 in Section Four Unit 3A.
a
B.
b
C.
c
D.
d
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【单选题】Parents always _______ great improvement in study ______their children.
A.
expect; for
B.
expect; from
C.
hope; for
D.
hope; with
【简答题】（10分）常温下已知pH=2的高碘酸（HIO 4 ）溶液与pH=12的NaOH溶液等体积混合，所得溶液显酸性；0.01mol·L -1 的碘酸（HIO 3 ）或高锰酸（HMnO 4 ）溶液与pH=12的NaOH溶液等体积混合，所得溶液显中性。请回答下列问题： （1）高碘酸是 （填“强酸”或“弱酸”），理由是 。 （2）0.01mol·L -1 的碘酸（HIO 3 ）溶液与pH=12的NaOH溶液等...
【单选题】I could think of nothin9__________ going to London to find a job there．
A.
behind
B.
except
C.
through
D.
after
【单选题】What do the Chinese plane manufacturers expect to do over the next 20 years?
A.
They expect to sell 300 of the 100-seater planes to Chinese customers.
B.
They expect to sell 3,000 of the 100-seater planes to Chinese customers.
C.
They expect to sell 100 of the 300-seater planes to Chinese customers.
D.
They expect to sell 100 of the 100-seater planes to Chinese customers.
【简答题】常温下，pH＝2的高碘酸(HIO 4 )溶液与pH＝12的NaOH溶液等体积混合，所得溶液显酸性；0.01 mol/L的碘酸(HIO 3 )或高锰酸(HMnO 4 )溶液与pH＝12的NaOH溶液等体积混合，所得溶液显中性。请回答下列问题： (1)高碘酸是________(填“强酸”或“弱酸”)，理由是_______________________。 (2)0.01 mol/L的碘酸(HIO 3 ...
【单选题】- What do they expect?
A.
They expect that to learn to drive.
B.
They expect that they can learn to drive.
C.
They expect that they to drive.
【简答题】柴油机的点火方式是?
【简答题】汽油机的点火方式是( ) ,而柴油机的点火方式是( ) 。
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