Objective: To explore proper operative methods for removal of airway foreign bodies in children and prevention methods.
目的：探讨小儿气管、支气管异物的诊治方法及防治措施。
This paper introduces the morphological characters and biological characters of the wax insect, and expounds the control features and prevention methods of the wax insect.
介绍了白蜡蚧的形态特征和生物学特征，阐述了白蜡蚧的防治特点和防治方法。
According to a survey conducted by CDC in 1999, 50% of the 38 million U. s. residents who regularly watch daytime soap operas said they learned something about diseases and prevention methods.
CDC在1999年进行的一项调查显示，经常收看日间肥皂剧的38,000,000美国人中有50%的人表示，他们从中学习到一些关于疾病的知识及预防方法。
According to a survey conducted by CDC in 1999, 50% of the 38 million U. s. residents who regularly watch daytime soap operas said they learned something about diseases and prevention methods.
CDC在1999年进行的一项调查显示，经常收看日间肥皂剧的38,000,000美国人中有50%的人表示，他们从中学习到一些关于疾病的知识及预防方法。
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