A、对
B、错
A、对
B、错
A、practice
B、imitation
C、pre-equipped UG
D、inner mechanism
A、the human characteristics of the child
B、the reinforcement the child has received
C、the environment in which the child develops
D、the concepts the child has formed about the world
A、grammar principles
B、reinforcement principles
C、operating principles
D、reward principles
A、对
B、错
A、对
B、错
A、caretaker talk
B、child directed speech
C、motherese
D、telegraphic speech
A、analogy
B、over-extension
C、under-extension
D、overgeneralization
A、aphasia
B、autism
C、stuttering
D、dysgraphia