单项选择题

According to the weather report, the pollution index was________.

A．very good
B．good
C．fair
D．poor
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单项选择题
Who sponsored the conference on population
A．Cairo.
B．The United Nations.
C．The World Bank.
D．The World Health Organization.
单项选择题
Henry Durant put forward the idea because he
A．had once fought in a war in Italy.
B．had been wounded in a war.
C．had assisted in treating the wounded.
D．had seen the casualties and cruelties of war.
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