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【单选题】
重结晶后,不出现晶体,哪项措施不能用A.
可用玻璃棒摩擦器壁
B.
少量该溶质的结晶，引入晶核
C.
放入冰水中冷却
D.
加入另外的溶剂
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举一反三
【简答题】“榜样学习”的教育效应最适合的心理学解释理论是观察学。()
【简答题】“榜样学习”的教育效应最适合的心理学解释理论是（ ）
【单选题】Many years ago, children wore clothes that were the same as the clothes worn by adults, except that they were smaller. People believed that children were just “small adults”, and expected them to dres...
A.
children should wear adults'
B.
children were the same as adults, except that they were smaller
C.
children acted like adults
D.
children were adults in small clothes
参考解析：
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