建立了毛细管气相色谱法、火焰光度检测器分析韭菜中的8种有机磷农药残留量的方法．实验结果表明:采用程序升温所测定的8种有机磷农药,在色谱柱DB-608上分离良好,回收率在70%-119%之间;最低检测质量浓度分别为敌敌畏0．02μg·mL-1,甲胺磷0．01 μg·mL-1,乙酰甲胺磷0．02μg·mL-1,甲拌磷0．01 μg·mL-1,氧化乐果0．05μg·mL-1,乐果0．01μg·mL-1,甲基对硫磷0．01μg·mL-1,毒死蜱0．02μg·mL-1．该方法快速灵敏,符合实际应用的需要．

• Mobile Network Architectures Evolution – MN Arch. Evolution: 2G to 3G – 4G – Evolved Packet System • Core NW Architecture & components • Protocols • 5G Network architecture – 4G to 5G Migration – 5G Architecture: Components & Interfaces – 5G Mechanisms: Subset – Network Slicing • Network Function Virtualization • Software Defined Networking – Network Selection • Software Defined Networking – Motivation & Basics – DEMOS (to do on your own) • Evolved RAN: LTE, LTE-Advanced and LTE-Advanced Pro Sessions I and II Sessions II and IV Sessions IV, V, and VI

定理1 设函数f(x)和g(x)在点x连续,则函数 f(x)±g(x,f(x)g(x), f(x) (当g(x)≠0时) 在点x也连续. 证明f(x)±g(x)的连续性: 因为f(x)和g(x)在点x,连续,所以它们在点x有定义, 从而f(x)g(x)在点x也有定义,再由连续性定义和极限运 算法则,有

1.2多项式的整除性 定义2.1设f(x)g(x)∈[x],若有h(x)∈[x]使得 f(x)=g(x)h(x),则称g(x)整除f(x),也称g(x)是f(x)的 二一个因式,f(x)是g(x)的一个倍式,记为g(x)f(x)(否则 二记为g(x)十f(x))进一步,若还有0