下列关于h2o和h2o2关系的说法中正确的是 A两者是同种物质b都是由氢原子和氧原子构成的c都是由氢元素和氧元素组成的d都含有氢 Template




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tomski下列关于h2o和h2o2关系的说法中正确的是 a两者是同种物质b都是由氢原子和氧原子构成的c都是由氢元素和氧元素组成的d都含有氢 coloring