一个微小的标准pH偏差

（2025-07-25 19:06）

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“孩子期末考试没有分考场，都在教室内集中考试。”“我儿子请了两天假，一直在打点滴，现在我们两个都‘中招’了！”“想到人多，没想到人那么多。来儿童医院看诊，被预检人数吓到！”近期，上海市疾控中心呼吸道传

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2024年11月12日，我们迎来了伟业计量集团17岁的生日，董事长肖航、总经理周婷婷、副总经理蒋洁及副总经理漆超携全体员工齐聚一堂，共同庆祝伟业计量17岁生日快乐！早上8时18分，庆典准时开始，在公司