单项选择题

A．To improve the knowledge of farmers in science and technology.
B．To improve the living conditions of farmers.
C．To improve the knowledge of unskilled workers.
D．To improve the living conditions of the farmers and workers.
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单项选择题
A．The room number.B．Date of departure.C．Time for checking in.D．Some personal information.
A．The room number.
B．Date of departure.
C．Time for checking in.
D．Some personal information.
单项选择题
A．$200.B．$180.C．$130.D．$50.
A．$200.
B．$180.
C．$130.
D．$50.
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