题目内容：
正式群体的发展经历了_________、联合群体和集体等三个阶段。 参考答案：
答案解析：
填空题：正式群体的发展经历了_________、联合群体和集体等三个阶段。
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- 题目类型：填空题
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根据下列材料，请回答题：June came and the hay (干草) was almost ready for
根据下列材料，请回答题：June came and the hay (干草) was almost ready for cutting. On Midsumm
维果斯基认为，儿童有两种发展水平：一是儿童现有水平；二是即将达到的发展水平。这两种水平之间的差异，即是_________
维果斯基认为，儿童有两种发展水平：一是儿童现有水平；二是即将达到的发展水平。这两种水平之间的差异，即是_________。
由于当时社会的混乱和经济的不景气，住在浔阳柴桑的陶渊明，和一般衰乱时代的乡下读书人一样，生活得非常__________。
由于当时社会的混乱和经济的不景气，住在浔阳柴桑的陶渊明，和一般衰乱时代的乡下读书人一样，生活得非常__________。从陶渊明弃官到他逝世，都在乡下种田，虽然
__________ I could say anything more, Holmes had rushed off
__________ I could say anything more, Holmes had rushed off towards the door.A．
Their meanings are known __________ every educated person.
Their meanings are known __________ every educated person.A．for B．on C．of D．to