单项选择题

A．Ten percent of the Americans live a poor life.
B．Poor people are those who live below the poverty line.
C．The poverty line rises as the general standard of living rises.
D．The poverty line tends to be at the same level.
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单项选择题
A．She was invited only for the weekend.B．The weather was too hot.C．She had an appointment.D．She had schoolwork to do.
A．She was invited only for the weekend.
B．The weather was too hot.
C．She had an appointment.
D．She had schoolwork to do.
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