Thanks to Dr Yuan’s research, the UN has more tools in the battle to rid the world _____ hunger.
A．of B．on C．offD．a(chǎn)t
A
考查固定詞組。Rid …of…去除…某物；結(jié)合句意可知A正確。句意：多虧了袁教授的研究，聯(lián)合國有很多的方法去除這個世界的饑餓。
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