单项选择题

It can be inferred that the toy industry ______.

A．must have gained abundant profit
B．plays a vital role in promoting the early-year education
C．has sponsored the neuroscience research
D．has stimulated children's desire for toys

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单项选择题

What is the author's attitude toward educational toys

A．Indifferent.
B．Negative.
C．Positive.
D．Tolerant.

单项选择题

In 1994,the Carnegie Corporation released a report to ______.

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