【Abstract】Language is the foundation of culture. Culture cannot exist without language. Language can reflect the chara......

目的 分析2012-2016年云南省129个县(区)梅毒疫情的空间分布特征.方法 基于云南省129个县(区)网络报告的梅毒疫情数据和人口信息,......

With the rapid increase of Unmanned Aircraft Vehicle (UAV) numbers,the contradiction between extensive flight demands an......

目的 运用空间自相关分析探究手足口病多次感染病例空间分布的热点区域,探索地理分布特征,揭示聊城市手足口病多次感染流行规律,为......

Patterns of variation in the chemical composition of wood,i.e.,holocellulose,cellulose and lignin contents and 1％ NaOH ex......

丘陵山区农业转型的关键是构建以农户家庭经营为基础的立体式、复合型现代农业经营体系,而家庭农场作为农户家庭经营的典型,且根植......