多项选择题
Strategies can be divided into（）.
A.Forward pushing strategy
B.Algorithmic strategy
C.Heuristic strategy
D.Reverse extrapolation
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多项选择题
The problem solving can be divided into three states（）
A.Confused state
B.Initial state
C.Intern state
D.Target state -
判断题
Problem solving is thinking that is directed toward the solving of a specific problem that involves both the formation of responses and the selection among possible responses.（） -
多项选择题
What are the stages of language development in vygowski’s theory.（）
A.Social
B.Egocentric
C.Pre-operation stage
D.Inner
