. ______ understanding the challenges faced by the world’s poorest people can we

题干

. ______ understanding the challenges faced by the world’s poorest people can we expect a new future
free of extreme poverty and hunger.

A．On

B．Through

C．Only

D．Only by

上一题下一题 0.85难度单项选择更新时间:2010-06-08 12:33:45

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