单项选择题

What kind of people had the advantages among ancient ancestors

A．Those who could weave with threads.
B．Those who possessed the highest level of language.
C．Those who were creative in tool-making.
D．Those who could play magic.

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热门试题

单项选择题

From the passage we learn that human brains.

A．improved the art of speech exclusively
B．developed only with the use of tools
C．and the art of speech had a mutual improvement
D．accorded with languages that stimulate them

单项选择题

The main point of this passage is ______.

A．evolution of speech
B．darwin's law of natural selection
C．progress of human brains
D．evolution of human intelligence