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【简答题】
能对抗外来少量的 _____ 或 _____ ,而保持溶液的 ____ 几乎不变的作用,称为缓冲作用。由 NaHCO 3 和 Na 2 CO 3 组成的缓冲溶液中, NaHCO 3 是抗 ______ 成分, Na 2 CO 3 是抗 ___ __ 成分。
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举一反三
【单选题】According to the woman, the war memorial is ___________.
A.
easy to find
B.
impossible to notice
C.
a little difficult to see
D.
o
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【简答题】输入假说属于 ,不属于第二语言教学理论研究
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【单选题】According to the application form, David is interested in ________.
A.
Communication
B.
marketing
C.
playing the piano
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【判断题】( ) 3.According to Professor Zog, there is no life on Earth.
A.
正确
B.
错误
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【单选题】According to the speaker, why are the humanities important?
A.
They provide us with facts, truth and objectivity.
B.
They provide us with social workers, teachers and artists.
C.
They provide us with many things that we never thought of before.
D.
They provide us with the ability to help others in our local community.
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【单选题】According to family members, Boeing is mainly concerned with:
A.
Profits
B.
Safty
C.
Lawsuits
D.
Compensation
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【判断题】类体中private修饰的变量在本类中能访问，类生成的对象也能访问。
A.
正确
B.
错误
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【单选题】According to the conversation, which statement is true?
A.
The number of city dwellers(城市居民） should be controlled.
B.
City dwellers should be aware of the problem.
C.
The government should limit the number of vehicles in a city.
D.
The Government should be aware of the problem.
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【单选题】According to the writer, when one door closes, _____________________.
A.
another door certainly opens
B.
other opportunities will come to you
C.
another door will not necessarily open
D.
things will change from bad to good
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【单选题】According to Vasillis Stergios, ______
A.
the demonstration went unnoticed
B.
the demonstration may escalate to real social upheavals
C.
there will be bomb threats after the demonstration
D.
the situation will get better and better
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相关题目：
【单选题】According to the woman, the war memorial is ___________.
A.
easy to find
B.
impossible to notice
C.
a little difficult to see
D.
o
查看完整题目与答案
【简答题】输入假说属于 ,不属于第二语言教学理论研究
查看完整题目与答案
【单选题】According to the application form, David is interested in ________.
A.
Communication
B.
marketing
C.
playing the piano
查看完整题目与答案
【判断题】( ) 3.According to Professor Zog, there is no life on Earth.
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the speaker, why are the humanities important?
A.
They provide us with facts, truth and objectivity.
B.
They provide us with social workers, teachers and artists.
C.
They provide us with many things that we never thought of before.
D.
They provide us with the ability to help others in our local community.
查看完整题目与答案
【单选题】According to family members, Boeing is mainly concerned with:
A.
Profits
B.
Safty
C.
Lawsuits
D.
Compensation
查看完整题目与答案
【判断题】类体中private修饰的变量在本类中能访问，类生成的对象也能访问。
A.
正确
B.
错误
查看完整题目与答案
【单选题】According to the conversation, which statement is true?
A.
The number of city dwellers(城市居民） should be controlled.
B.
City dwellers should be aware of the problem.
C.
The government should limit the number of vehicles in a city.
D.
The Government should be aware of the problem.
查看完整题目与答案
【单选题】According to the writer, when one door closes, _____________________.
A.
another door certainly opens
B.
other opportunities will come to you
C.
another door will not necessarily open
D.
things will change from bad to good
查看完整题目与答案
【单选题】According to Vasillis Stergios, ______
A.
the demonstration went unnoticed
B.
the demonstration may escalate to real social upheavals
C.
there will be bomb threats after the demonstration
D.
the situation will get better and better
查看完整题目与答案