The study found that one in five children over age two had a low risk of serious injury but received CT scans anyway.

VOA: special.2009.10.28

Now, remember, the formation of the ionic bonds was from group one and group two, and over here with group six and seven.

现在请记住，离子键的形成,从第一族和第二族元素，与六七主族的元素相互构成的。

麻省理工公开课 - 固态化学导论课程节选

Here is an example that shows some very, very metallic elements, groups one and two, and some non-metallic elements over here, five, six and seven.

举个例子,这个例子表明金属元素，第一族和第二族，与一些非金属元素,在这里，第五族，第六族，和第七族。

麻省理工公开课 - 固态化学导论课程节选

So why are there not one, but two lawsuits over one of her assets?

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New restrictions on the powers of the Lords were introduced in the 1949 Parliament Act which reduced the time peers could delay a bill from two years over three parliamentary sessions to one year over two parliamentary sessions.

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Schwartzel's compatriot and world No. 14 Louis Oosthuizen was also two over after day one, with American Keegan Bradley four over.

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