【简答题】按要求求下列一阶差分方程的通解或特解. (1)求yx+1-2yx=2x的通解; (2)求yx+1一2yx=3x2满足条件yx(0)=0的解; (3)求2yx+1+10yx一5x=0的通解.
【单选题】某肝硬化腹水患者,在应用大量速尿后出现乏力、少尿、烦躁不安,继而出现昏迷。该患者最主要的护理诊断是
【单选题】下列关于系统软件的三条叙述中,正确的是( )
【单选题】Things made by hand are usually more expensive than _ produced in factories.
【单选题】Usually earthquakes measuring 6.5 or higher on the Richter Scale can cause serious destructions.
【简答题】计算(1) 求出 的通解 ; (2)求出 的一个特解; (3)求出 的通解.
【简答题】Usually, terrorists or radical political groups cause the most famous hostage situations with ______.