能坐也能躺!中小学生午休课桌椅有了“国标”|漂亮寡妇做爰hd中字

1. 漂亮寡妇看上穷小子是哪部电视剧

2. 寡妇看上帅气小伙是什么电视剧

  为解决孩子们的午睡问题,近年来,可平躺或倾斜的各式“变形”午休课桌椅在越来越多学校投入使用——上课时,它们是标准的课桌椅;午休铃声一响,它们就能轻松切换形态,让学生舒适“躺睡”。不过,各地选用的午休课桌椅,大小、长短、款式、靠背角度等缺少统一的科学规范。对此,市场监管总局近日批准发布《中小学生午休课桌椅通用技术要求》国家标准,将于明年2月1日正式实施。标准首次从设计、生产到使用全流程,为可折叠午休课桌椅树立了明确规范。

  “国标”规定的午休课桌椅,长什么样?据了解,《中小学生午休课桌椅通用技术要求》充分考虑了学生午休的舒适度。比如,展开后的总长度要超过1米,保证学生能伸展开身体;靠背可以放倒到135度以上,接近半躺的舒适角度;甚至连头枕和搁腿的位置都有明确的尺寸要求,确保孩子们能真正睡个好觉。

  中国教育科学研究院研究员储朝晖表示,“国标”的推广,并非等于未来所有课桌椅都将变成午休课桌椅,各地可根据实际情况决定是否采用这一新式课桌椅。“国标”的制定,为学生的健康午休画下了基准线。但如何将这条线稳稳地铺进全国众多中小学教室,还需要各地用因地制宜的智慧和实实在在的行动来作答。

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