填空题

The emission-trading program would encourage factories ______.

【参考答案】

cut their emissions below the limits。
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A．Art is losing its audience in modem society.B．Art should be encouraged in hospitals.C．Works of art should have places for exhibition.D．Doctors and patients should learn painting.
A．Art is losing its audience in modem society.
B．Art should be encouraged in hospitals.
C．Works of art should have places for exhibition.
D．Doctors and patients should learn painting.
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