单项选择题

What are the sounds a child is able to make like

A．They are not varied as those used in language.
B．They are more varied and numerous than those in any language.
C．They are far fewer than those needed to form a language.
D．They are completely different from the sounds of a language.

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单项选择题

Speech is_______.

A．an action that is governed by instinct
B．an action has to be learned
C．an action that can't become automatic
D．an action that is seldom repeated

单项选择题

The passage is mainly about ______.

A．Mensa
B．Purpose of IQ tests
C．Development of IQ tests
D．History of IQ tests