"The competition is greater, the pressures on kids have increased dramatically, " said Mel Riddle of the National Association of Secondary School Principals.

“竞争更加激烈，孩子们的压力剧增，”全国中学联合会负责人梅尔.瑞得尔(Mel Riddle)认为。

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Kathleen Jaeger of America's Generic Pharmaceutical Association adds that branded firms try to extend their lucrative monopolies by filing less rigorous secondary patents designed “to block generics”.

美国通用药物协会的Kathleen Jaeger补充说很多品牌药公司制作大量的文件申请专利分案“以阻碍仿制药”。

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Class distinctions tend to be relatively fixed, although in the city where greater variety is permitted, they are more likely to be secondary determining factors of friendship and association.

阶级差别往往是相对固定的，在城市里虽然允许存在许多不同的社会阶层，但是这些阶级差别更可能成为友谊和社会交往的次要性决定因素。

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In a joint response, the National Association of Head Teachers and the Secondary Heads Association said they supported ways of identifying potential for higher education in students whose backgrounds made them unlikely to do well at A-level.

BBC: Study backs talent-spotting tests

The Secondary Heads Association said the latest figures disguised the continuing increase in secondary school class sizes, especially for 11-14 year olds.

BBC: Fall in infant class sizes

Alan McKenzie, acting general secretary of the Scottish Secondary Teachers Association, described the list as very restrictive.

BBC: Scottish exams set texts revealed