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．It had many problems.B．It was the most democratic country in the world.C．It was fair to women.D．It had some minor problems to solve.
A．It had many problems.
B．It was the most democratic country in the world.
C．It was fair to women.
D．It had some minor problems to solve.
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trembling
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