单项选择题

A．To let them learn some financial experiences.
B．To let them learn how to save money.
C．To let them learn how to buy gifts.
D．To let them learn how to earn money.
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填空题
To treat everyone with courtesy, it is essential for one to have ______.
单项选择题
A．It takes some materials out of garbage.B．It separates garbage into useful and useless things.C．It just drops the garbage onto a conveyor belt that feeds the machine.D．It pumps water into garbage.
A．It takes some materials out of garbage.
B．It separates garbage into useful and useless things.
C．It just drops the garbage onto a conveyor belt that feeds the machine.
D．It pumps water into garbage.
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