3PeaR.D.Practices of Distributed Intelligence and design for education[A].In G. Salomon (Ed.).Distributed Cognitions[C] .New York: Cambridge University Press, 1993.47-87.
7PeaR.D.Practices of Distributed Intelligence and design for education[A].In G. Salomon (Ed.).Distributed Cognitions[C].New York: Cambridge University Press,1993.47- 87.
