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关注:1
2013-05-23 12:21
求翻译:他们发现了放射性元素镭是什么意思?![]() ![]() 他们发现了放射性元素镭
问题补充: |
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2013-05-23 12:21:38
They found that the radioactive element radium
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2013-05-23 12:23:18
They found that the radioactive elements radium
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2013-05-23 12:24:58
They have discovered the radioactive element radium
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2013-05-23 12:26:38
They discovered the radioactive elements Radium
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2013-05-23 12:28:18
They discovered radioactive elements Radium
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