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【多选题】
以认知发展为标准游戏分为A.
练习性游戏
B.
象征性游戏
C.
结构性游戏
D.
规则性游戏
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反馈参考答案：
举一反三
【简答题】PLC在数控机床上()功能控制
【简答题】现代文明的发展要靠 三大支柱。
【判断题】If we include poles and zeros at infinity, the number of open-loop poles is equal to that of open-loop zeros. Hence, we can always state that the root loci start at the poles of G(s)H(s) and end at th...
A.
正确
B.
错误
【单选题】What else can we learn about the current population problem in Australia from the passage?
A.
It does not trouble women in their 20s.
B.
It'll not end until people hit their 80s.
C.
It begins when Australians are 34 years old.
D.
It'll become worse and worse as men get older.
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