生物入侵对城镇生态系统稳定性影响及防治对策 关键词 生物入侵 城镇生态系统 防治对策 [gap=880]Key words Biological invasion，Urban ecosystem，Prevention and control strategies
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大学生甲状腺肿流行特征_基础医学 关键词] 大学生；甲状腺肿；流行特征；防控策略 [gap=1700]Key words] College students; Goiter; Prevalent characteristics; Prevention and control strategies
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Liu Kangmai introduced in the General Assembly on AIDS, the future of AIDS prevention and control strategies have two different voices.
刘康迈介绍，在此次艾滋病大会上，有关今后的艾滋病防控策略有两种不同的声音。
Objectives: to further understand the HIV infection path, and to provide references for AIDS prevention and control strategies in our country.
目的：进一步了解艾滋病的传播途径，为制定我县的艾滋病防治策略提供依据。
Therefore the purpose of this paper gives an overview of the risk and hazard of mycotoxins and possible prevention and control strategies of mycotoxin contamination in grain feedstuffs.
本文介绍了粮食饲料中真菌毒素的危害，并给出了可能的预防和控制措施。
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