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  1. ... a couple of different ways to do this activity. It.... The focus of the activity is to show... of the method by which the lac operon is... is an exam ...

    分類:科學 > 其他:科學 2006年04月21日

  2. ...the current loop must be broken by stopping the electron flow ...various means. Some ways to control corrosion include electrical means (cathodic ...

    分類:科學 > 其他:科學 2006年06月11日

  3. ... paid attention to by common people in the 1990s, because... is a kind of unit that length measured... is the example, because the size of its...compute ...

    分類:科學 > 其他:科學 2005年11月04日

  4. ...nitrogen oxygen circulation and relation picture of temperature) . But the fixed star of big quality, the way that energy produces is to take carbon ...

    分類:科學 > 其他:科學 2007年12月15日

  5. ...originally, does not need to admire other people to live, for example in the movie mentioned that has a woman...arrive at the disaster relief area, may ...

    分類:科學 > 其他:科學 2010年10月06日

  6. ...basis for something else. For example, the ethics of someone may be seen as a... is a convenient way of reducing the complexity... confirmed by scientif ...

    分類:科學 > 其他:科學 2005年09月07日

  7. ... off, in different directions. The different colors of light are all reflected by the particle in the same way. The reflected light appears white ...

    分類:科學 > 其他:科學 2005年09月15日