单项选择题

A．To limit discussion on heating bills.
B．To prevent heat loss.
C．To determine the temperature in homes.
D．To convert homes to electric heat.
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单项选择题
A．The conditions of the girls as child labor.B．The conditions in Asian factories.C．Working hours and payment.D．Woman labor force.
A．The conditions of the girls as child labor.
B．The conditions in Asian factories.
C．Working hours and payment.
D．Woman labor force.
单项选择题
A．Very few were produced.B．Most were kept only a short time.C．Most were pointed on delicate paper.D．Many have been acquired by collectors.
A．Very few were produced.
B．Most were kept only a short time.
C．Most were pointed on delicate paper.
D．Many have been acquired by collectors.
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