单项选择题

A．Men from Mars or space adventure.
B．The results of technical developments on science.
C．The results of technical developments on human mind.
D．None of above.
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单项选择题
A．To help solve their psychological problems.B．To play games with them.C．To send them to the hospital.D．To make them aware of its harmfulness.
A．To help solve their psychological problems.
B．To play games with them.
C．To send them to the hospital.
D．To make them aware of its harmfulness.
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