问题
填空题
铜元素符号为（），密度为（）g/cm3，熔点为（）℃。
答案
参考答案：Cu；8.92；1083
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铜元素符号为（），密度为（）g/cm3，熔点为（）℃。
参考答案：Cu；8.92；1083
| 阅读理解。 |
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