A.Confused stateB.Initial stateC.Intern stateD.Target s……

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

单项选择题The following concepts do not belong to Piaget’s Theory（）.

A.Equilibration
B.Evolution
C.Assimilation
D.Accommodation

判断题Chomsky has argued that all languages have the same underlying，abstract structure-universal grammar.（）

多项选择题Language structures include（）

A.Phonology
B.Morphology
C.Semantics
D.Syntax