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.
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单项选择题
A．He lost his class schedule.B．He could not drop the astronomy course.C．He registered for too many classes.D．He missed the deadline for adding courses.
A．He lost his class schedule.
B．He could not drop the astronomy course.
C．He registered for too many classes.
D．He missed the deadline for adding courses.
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.
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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