单项选择题

A．Because it was their hometown.
B．Because they wanted to help the AIDS patients.
C．Because they were doing their summer social topics.
D．They were learning medicine and doing research on HIV.
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单项选择题
A．To choose a topic for a term paper.B．To type some research materials.C．To find material not available at the main library.D．To learn to use the computers there.
A．To choose a topic for a term paper.
B．To type some research materials.
C．To find material not available at the main library.
D．To learn to use the computers there.
单项选择题
A．The liberation movement of British women.B．Rapid economic development in Britain.C．Changing attitudes to family life.D．Reasons for changes in family life in Britain.
A．The liberation movement of British women.
B．Rapid economic development in Britain.
C．Changing attitudes to family life.
D．Reasons for changes in family life in Britain.
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