land race

Senior Chemistry Localization Instruction Resources Development and Utilization;

中学化学教学中本地教学资源开发和利用

The effects of the invasion of the imported fire ant,solenopsis invicta on the communities of the native ants were investigated by bait methods in BeiLiu,GuangXi from Sept.

对入侵区与未入侵区比较发现不同生境下,红火蚁入侵使本地蚂蚁的个体数量明显降低,丰富度、多样性和均匀性指数均下降,优势度指数升高,红火蚁成为优势种。

The paper divided the ASP service into 4 basic types, namely, local ASP, MIP, AIP and pure ASP, and prescribed complete framework for the understanding of ASP service syste.

基于网络计算 (NC)的层次结构模型对ASP服务体系进行了结构化的描述和分析 ,将ASP服务体系分为本地ASP、MIP、AIP和纯ASP 4种基本类型 ,给出了一种认识ASP服务体系的完整框架。