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.
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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.
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.
单项选择题
A．Their self-reported health records and mass index.B．Their marital and work history.C．Whether they have children or not.D．All-above mentioned.
A．Their self-reported health records and mass index.
B．Their marital and work history.
C．Whether they have children or not.
D．All-above mentioned.
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