单项选择题

A．They were used to hold stuff.
B．They took the place of newspaper in history.
C．They helped the farmers to have better harvest.
D．They were used as textbooks.
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单项选择题
A．On foot.B．By bus.C．By car.D．By bike.
A．On foot.
B．By bus.
C．By car.
D．By bike.
单项选择题
A．They set their own exams.B．They select their own students.C．They award their own degrees.D．They organize their own laboratory work.
A．They set their own exams.
B．They select their own students.
C．They award their own degrees.
D．They organize their own laboratory work.
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