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 art of speech had a mutual improvement
D．reached the present size about a few hundred years ago

<上一题目录下一题>

热门试题

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.

单项选择题

What can be preceded according to the passage

A．The evolution of the speech in the long run.
B．The time when early man mastered language
C．Description about the Ice-aged climate.
D．Other factors functioned in the evolution of human brains.