题目内容
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提问人:网友lixin080108
发布时间:2022-01-07
[主观题]
(), the more you use your brain, the more active it will become.
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A、when two persons meet for the first time
B、When two persons finish their meeting and are ready to leave
C、When two persons meet again
D、During the meeting
B.温度一定时,影响缓冲溶液pH值的主要因素为pKa和缓冲比
C.缓冲溶液缓冲比一定时,总浓度越大,则其缓冲容量越大
D.缓冲溶液的有效缓冲范围为pka 1
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