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二是优化生物样本采集要求。更新了监测人群的确定原则，新增了生物安全、采样空白、样本分装、样本接收、样本入库等关键环节的质量控制要求，并对血样和尿样的采集方式进行了调整优化，同时删减了脂肪、粪便、呼出气及其他组织等样本采集的相关内容。
，更多细节参见WPS下载最新地址
"We get a lot of people saying, 'I don't have a problem dealing with people'. And then they realise that they are not comfortable sharing spaces with other people.
同一需求不同人问法不同，结果波动大