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【单选题】
40 mol · L -1 丙酸 ( K a = 1.3 × 10 -5 ) 溶液的 pH 是
A.
0.40
B.
2.64
C.
5.28
D.
4.88
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【单选题】____ three days to go before the final exams, shouldn’t you work harder?
A.
In
B.
On
C.
By
D.
With
【单选题】Joanna is no less hardworking than her twin sister, _______ she failed in the final exam.
A.
but
B.
so
C.
or
D.
and
【单选题】Of the three questions the first one is the ___ difficult .
A.
least
B.
much
C.
more
D.
less
【简答题】从软件开发工具的发展趋势看,___________化、网络化、___________化和标准化是值得重视的动向。
【简答题】Her last three months of life before______(give)a final, lethal injection by his doctor were filmed and first shown on television last year.
【单选题】下列不能做填土的是( )
A.
碎石类土
B.
砂土、爆破石渣
C.
含水量符合压实要求的粘性土
D.
硫酸盐含量大于8%的土
【单选题】The storm went on for ______ .
A.
over three hours
B.
three hours
C.
less than three hours
【简答题】A.A third. B.Almost half. C.Less than three-fifths. D.More than three-fifths.
【简答题】to use three times less fuel than current cars
【单选题】Having consecutively won their last three games, the Atlanta Braves go into the final round with a lot of_____.
A.
concern
B.
confidence
C.
concept
D.
confrontation
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