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单项选择题
A．advocate the importance of the early-year education
B．develop the education market for parents and children
C．emphasize parent's wise investment on children
D．explain in detail the science on networks of nerves
单项选择题
A．parents should save more money for children's college education
B．the brain can develop until the adult age
C．babies turns angry when not given enough toys
D．too many toys may affect a child's development
单项选择题
A．a critical stage to develop human nerves
B．extremely important for a person's development
C．studied carefully for government to make policies
D．worth more efforts in education than that in later years
