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思考题6 欲配制pH为3左右的缓冲溶液,下列何种酸及其共轭碱(括号内为pKa): HOAc(4.74),甲酸(3.74),一氯乙酸(2.86),二氯乙酸(1.30),苯酚(9.95)。
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举一反三
【简答题】火灾自动报警系统是由什么组成的?其作用是什么?
【单选题】British Conservative Party was formerly called _______ Party in the 18th century.
A.
Whig
B.
Tory
C.
Liberal
D.
Nationalist
【单选题】To others and themselves the British have a reputation for being conservative not in narrow political sense, but in the sense of adherence to accepted ideas and unwillingness to question them. The rep...
A.
language
B.
future
C.
history
D.
literature
【简答题】将1英寸和1公分换称为法定计量单位，并求两者合多少厘米？
【单选题】Which of the following parties is NOT British?
A.
Conservative Party.
B.
Labour Party.
C.
Liberal Party.
D.
Democratic Party.
【简答题】British
Conservative Party was formerly called _______ Party in the 18th century.A. Whig B. Tory C. Liberal D. Nationalist
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