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  1. we are scientists 相關
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  1. 1. T 2. F experiment --> observation 3. ? 4. T/F there are a broken glass bin but it differs from books 5. T...

    分類:科學及數學 > 化學 2009年08月12日

  2. 1.D.scientists always make correct explanations...圍住地球轉呢個說法。 2.D.we may eat some chemicals and... statements is incorrect? 係incorrect,,唔係 ...

    分類:科學及數學 > 化學 2007年11月09日

  3. To obtain nuclear energy, scientists can merely control nuclear fission nowadays. Then, why... fission occurs as the nucleus of an element is unstable. ...

    分類:科學及數學 > 化學 2009年03月20日

  4. ...nuclear energy to produce electricity,but we can also use it to make atomic bombs.Atomic bombs can be disaster to use. 2:Science... of science in ...

    分類:科學及數學 > 化學 2008年09月03日

  5. ...flow from positive terminal to negative terminal for electrons flow in magnetic field we should think that the current is opposite to the flow of ...

    分類:科學及數學 > 化學 2007年04月18日

  6. ...and negative electrons, If we hammer their compounds, they will be broken since all their... and thus form different atoms.Scientist can create atom in ...

    分類:科學及數學 > 化學 2007年08月28日

  7. ... now, I asked about it again as I believe there must be some ways. I got the answer how the scientists used to extract sodium metal. 2010-06-18 ...

    分類:科學及數學 > 化學 2010年06月05日

  8. ...is responsible. James Murphy, one of the scientists on this panel, is quoted as having said, "Certainly we can't explain that basic ...

    分類:科學及數學 > 化學 2008年03月16日

  9. ... to carbon dioxide. The more we burnt, the more CO2 will be released to the atmosphere. ...unecessary activities. Also, the scientists have to develo ...

    分類:科學及數學 > 化學 2007年12月04日

  10. ...is asking about whether they are scientists, then it is "True" ) 3. ... arguments on this topic. We cannot determine whether ...

    分類:科學及數學 > 化學 2007年09月10日