单项选择题

The semantic components of the word "man" can be expressed as ______.

A．+ animate, + human, + male, - adult
B．+ animate, + human, - male, - adult
C．+ animate, + human, + male, + adult
D．+ animate, + human, - male, - adult

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单项选择题

What is the main idea of the passage

A．Human ancestors became predominantly right- handed when they began to use tools.
B．It is difficult to interpret the significance of anthropological evidence concerning tool use,
C．Human and their ancestors have been predominantly right -handed for over a million years.
D．Human ancestors were more skilled at using both hands than modem humans.

单项选择题

All of the following are mentioned as types of evidence concerning handedness EXCEPT ______.

A．ancient artwork
B．asymmetrical skulls
C．studies of tool use
D．fossilized hand bones