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电解硫酸铜溶液时,在阴极发生的反应属于
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笔式验电笔测量带电体与大地之间的电位差超过多少伏，验电笔中的氖管就发光。
Disillusionment with the parents, however good and adequate they may be both as parents and as __________, is to some degree __________. Most children have such a high ideal of their parents, unless the parents themselves have been _____________ that it can hardly hope to _________ to a realistic evaluation.
Parents would be greatly surprised and deeply _________ if they realized how much belief their children usually have in their character and __________, and how much this faith means to a child.
If parents were prepared for this _________ reaction, and realized that it was a sign that the child was growing up and developing ________ powers of observation and _____________ judgment, they would not be so hurt, and therefore would not drive the child into _____________ by resenting and resisting it.
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