Compared with 2001, the distribution of cases shifted to older age groups (especially the 10-14 year group).

与2001年相比，病例的分布转向年龄更大的年龄组(尤其10 - 14岁年龄组)。

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RESULTS: There were no significant differences in the number of lesion vessels, degree of lesion and morphologic change between the over 5-year group and control group(P >0.05).

结果：糖尿病5年组病变血管数量分布上以及病变程度、形态与无糖尿病组比较，差异均无显著性意义（P>0.05）。

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This year,most performances took place in the center of Washington in a group of old buildings that used to be businesses.

VOA: special.2009.08.05

So, you may or may not know this about your TAs, but this is a pretty competitive group of TAs we have this year, and they like to brag about how smart their recitation is, how good questions they're getting in the recitation section.

不知道你们是否知道这与你们的助教有关，但是今年我们的助教们,都非常有才，而且他们都想向别人炫耀一下，自己的讨论课做得有多漂亮，回答的问题有多好。

麻省理工公开课 - 化学原理课程节选

Roger Ibbotson took a look at a larger group of funds -3,500--funds over a ten-year period and found survivorship bias at 2.9% per year and backfill bias at 4.6% per year.

罗杰·伊博森研究了更大的样本组,3500支基金10年间的表现,算出其生存偏差是每年2.9%,回填偏差是每年4.6%

耶鲁公开课 - 金融市场课程节选

For instance, in England in the early 1980s only about 10% of the year group achieved three A-levels.

BBC: Massachusetts: Pioneering Gove's knowledge curriculum

The education ministry in Paris dictates how many hours a week are devoted to each subject for each year group.

ECONOMIST: French education

But because it involves tracking each year group of pupils, it has taken five years to produce the first results.

BBC: NEWS | UK | Education | How 'value added' works