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1·To study the difference of changes on apoptosis, necrosis and respiratory burst of the polymorphonuclear neutrophils (PMN) in endotoxemia rat model.

本研究观察大鼠内毒素血症时肺组织中及外周血多形核中性粒细胞（PMN）凋亡、坏死及功能改变的差异。

2·News of an outbreak of severe respiratory illness in Mexico burst into public consciousness last Friday, April 24.

关于在墨西哥爆发严重呼吸系统疾病的新闻的发布时间是上周五，4月24日。

3·Especially the upper respiratory tract infection, fever, nasal mucosa dry micro lift pipe burst bleeds.

尤其是上呼吸道感染发热，鼻粘膜干燥微箅管破裂出血。