单项选择题

A．To limit the time on the Internet.
B．To supply more activities and games.
C．To encourage people to do more healthy exercises.
D．To consider social factors about the design for technology.
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单项选择题
A．He enjoyed the exhibit, too.B．He has read about the exhibit.C．He knows many local artists.D．He needs to finish his reading first.
A．He enjoyed the exhibit, too.
B．He has read about the exhibit.
C．He knows many local artists.
D．He needs to finish his reading first.
单项选择题
A．The graduate students could understand the lecture.B．Neither the undergraduate students nor the graduate students could understand the lecture.C．Both the undergraduate students and the graduate students could understand the lecture.D．The undergraduate students could understand the lecture.
A．The graduate students could understand the lecture.
B．Neither the undergraduate students nor the graduate students could understand the lecture.
C．Both the undergraduate students and the graduate students could understand the lecture.
D．The undergraduate students could understand the lecture.
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