• Hong Kong health authorities closed off the hotel on May 1 after a confirmed swine flu case - a Mexican tourist who stayed there.

    VOA: standard.2009.05.08

  • So, in fact, yes, we did confirm that these covalent bond, at least in the case of hydrogen, we have confirmed by the numbers that we are at a lower energy state when we talk about the bonded atom versus the individual atom.

    因此,事实上,是的,我们证实了共价键,至少在氢这种情况下,我们通过数据证实了,成键的原子处于能量更低的状态,当其与单个的原子相对比时。

    麻省理工公开课 - 化学原理课程节选

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