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如图中A、B、C、D、E、F分别表示教案备课库常见的六种物质,B、C、D、E分别属于酸、碱、盐、氧化物四种类别中的一种,A是目前提取量最大的金属,B由两种元素组成,C是大理石的主要成分.(图中用“﹣”...
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A〜F是教案备课库常见的物质己知ABCDE是五种不同类别的物质.a足空气中含有的一种气体e是地壳中含
A.B.C.D.E.F.为常见的六种物质其中A.C.为无色液体B.E.为黑色固体D.F.是气体.它们
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右图中的六个圆A.B.C.D.E.F.分别表示六种物质蓝色溶液A.与C.反应能生成两种沉淀B.为氧化
下图中的六个圆A.B.C.D.E.F.分别表示六种物质蓝色溶液A.与C.反应能生成两种沉淀B为氧化物
现有CuCuOCuSO4C.COCO2六种物质它们的反应关系如下图所示图中每个字母分别代表上述六种物
A.B.C.D.E.F.分别是铁粉稀盐酸二氧化碳氧气硫酸铜溶液碳酸钙中的一种物质.如图用圆表示这六种
A.—F.是常见的六种物质其中B.常温下是一种常见的气体E.是世界年产量最大的金属F.是一种红色单质
图中的六个圆ABCDEF分别表示六种物质蓝色溶液A与C反应能生成两种沉淀B为氧化物CDEF分别是碳
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