大革命失败后，共产党为什么会连续出现三次“左”倾错误？
Which of the following performance tools can be used to determine if a system is thrashing？（） [" svmon and tprof"," vmtune and schedtune"," ps and schedtune"," vmstat and topa"]
关于测设工作的描述中，正确的是（）。 ["测设要以地面控制点为根据","测设的水平距离是巳知的","测设的水平角度是巳知的","测设的高程是巳知的","直角坐标法是根据水平角和距离测设点的平面位置。"]
小学心理咨询师的工作重点是什么？
Which of the following tools should be used to report in-depth information about file fragments？（） [" defragfs"," istat"," filemon"," fileplace"]
发达国家城市化具有哪些特点？
