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【单选题】
用NaOH标准溶液滴定一元弱酸时,若弱酸和NaOH浓度都比原来增大10倍,则滴定曲线中
A.
化学计量点前后 0.1% 的 pH 均增大
B.
化学计量点前后 0.1% 的 pH 均减小
C.
化学计量点前 0.1% 的 pH 不变,后 0.1% 的 pH 增大
D.
化学计量点前 0.1% 的 pH 变小,后 0.1% 的 pH 增大
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参考答案:
举一反三
【单选题】Though he refused any responsibility for the failure of the negotiations, Stevenson had no right to______ himself: it was his______ that had caused the debacle.
A.
blame... skill
B.
congratulate... modesty
C.
berate... largesse
D.
absolve... acrimony
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【简答题】Recently plans were announced to build a new airport near your community. Do you support or oppose this plan? Explain your position.
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【单选题】Though he had tried to climb to the top of the mountain several times, he didn't__________________.
A.
get it
B.
make it
C.
arrive it
D.
do it
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【单选题】Why do you want this job?
A.
Yes, I do. I like the support and creativity that you get from a group.
B.
I have worked for a hospital for one year.
C.
I’m persistent and a fast learner.
D.
I’m looking for a job where I can use my drawing skill.
E.
Well, my name is Lin Li. My major is engineering.
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【简答题】“A large retailer wants to open a new mega-store in your neighborhood.” Do you support or oppose this opening?
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【简答题】Do you think this is a good phenomenon or bad? Give some examples to support your views.
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【单选题】John passed the examination though he had only spent _______ on the subject as others had done.
A.
as half time much
B.
as half much time
C.
half as time much
D.
half as much time
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【单选题】____________ many times, but he still couldn't understand it. [ ]
A.
Though he had been told
B.
Having been told
C.
Having told
D.
He had been told
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【单选题】_____ Mom had asked Jack to close the window before he went out,______ he forgot to do it.
A.
Though; /
B.
Though; but
C.
Till; /
D.
Until; then
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【简答题】Do you have any _________ ( 证据 )to support this statement?
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相关题目:
【单选题】Though he refused any responsibility for the failure of the negotiations, Stevenson had no right to______ himself: it was his______ that had caused the debacle.
A.
blame... skill
B.
congratulate... modesty
C.
berate... largesse
D.
absolve... acrimony
查看完整题目与答案
【简答题】Recently plans were announced to build a new airport near your community. Do you support or oppose this plan? Explain your position.
查看完整题目与答案
【单选题】Though he had tried to climb to the top of the mountain several times, he didn't__________________.
A.
get it
B.
make it
C.
arrive it
D.
do it
查看完整题目与答案
【单选题】Why do you want this job?
A.
Yes, I do. I like the support and creativity that you get from a group.
B.
I have worked for a hospital for one year.
C.
I’m persistent and a fast learner.
D.
I’m looking for a job where I can use my drawing skill.
E.
Well, my name is Lin Li. My major is engineering.
查看完整题目与答案
【简答题】“A large retailer wants to open a new mega-store in your neighborhood.” Do you support or oppose this opening?
查看完整题目与答案
【简答题】Do you think this is a good phenomenon or bad? Give some examples to support your views.
查看完整题目与答案
【单选题】John passed the examination though he had only spent _______ on the subject as others had done.
A.
as half time much
B.
as half much time
C.
half as time much
D.
half as much time
查看完整题目与答案
【单选题】____________ many times, but he still couldn't understand it. [ ]
A.
Though he had been told
B.
Having been told
C.
Having told
D.
He had been told
查看完整题目与答案
【单选题】_____ Mom had asked Jack to close the window before he went out,______ he forgot to do it.
A.
Though; /
B.
Though; but
C.
Till; /
D.
Until; then
查看完整题目与答案
【简答题】Do you have any _________ ( 证据 )to support this statement?
查看完整题目与答案
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