Methods Food pollution surveillance and analysis sites were established. Regular examination of various foods and determination of the samples according GB were performed.
方法设立食品监测哨点，定期抽检粮食、蔬菜、食用油、禽畜肉及内脏、豆制品、调味品、海鲜等样品，按国家标准方法进行检验，并对结果进行分析。
Hearing examination and regular examinations of otorhinolaryngology should be considered as necessary examination items for flight persons in order to implement health care for them.
应把听力、耳鼻咽喉科常规检查作为飞行人员必要的检查项目，对其进行健康监护。
Conclusion:Gastrointestinal barium meal examination plays an important role in screening polyps(especially intestinal polyps)and it can also provide noninvasive measures for regular follow-up.
结论：胃肠道造影检查对发现黑斑息肉病，特别是小肠息肉有重要诊断意义，而且为无创的定期随诊提供了平台。
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