单项选择题

A．Guide and tourist.
B．Salesman and customers.
C．Teacher and student.
D．Engineer and customer.
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单项选择题
A．Picture taking.B．Memory.C．Language learning.D．Poem writing.
A．Picture taking.
B．Memory.
C．Language learning.
D．Poem writing.
单项选择题
A．Because people have less experiences.B．Because there are more reasons for autumn.C．Because the weather is quite changeable then.D．Because the apparatus cannot work well.
A．Because people have less experiences.
B．Because there are more reasons for autumn.
C．Because the weather is quite changeable then.
D．Because the apparatus cannot work well.
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