我国著名化学家侯德榜先生作出的重大贡献是（ ）A．发明黑火药B．创造湿法冶金C．改进纯碱的生产D．发 我国著名化学家侯德榜先生发明的“侯氏制碱法”，因原料利用率高...
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侯德榜先生是我国制碱工业的先驱和奠基人，他改进了纯碱的生产，发明的“侯氏制碱法”提高了原料的利用率．故选C．
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