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It is reported that the scientists in our country are_______all possible way to control H7N9 flu. 

A．operating B．solving C．exploding D．exploring

D

解析試題分析：句意：據(jù)報(bào)道，我們國(guó)家的科學(xué)家正在探索所有可能的方法來控制H7N9流感。Operating做手術(shù)；solving解決；exploding爆炸；exploring探究，選D。
考點(diǎn)：考查詞義辨析

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