单项选择题

What is exceptionally remarkable about a child is that______.

A．he owes his speech ability to good nursing
B．he has a brain more complex than an animal's
C．he can produce his own sentences
D．he is born with the capacity to speak

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单项选择题

If a child starts to speak later than others, he will in future

A．have a high IQ
B．be insensitive to verbal signals
C．be less clever
D．not necessarily be backward