螺杆泵的操作注意事项？
网上客户关系管理的优点（） [" 降低管理成本"," 增强与其他应用软件的“对接”"," 接触更多的客户"," 节约员工培训成本"," 程序缺陷少，系统不稳定"]
对于应用软件，构成硬件不可缺少的组成部分计入（）科目核算。 ["“固定资产”","“无形资产”","“待摊费用”","“长期应付款"]
钢管焊接时，有加固环的钢管，加固环的对焊焊缝应与管节纵向焊缝错开，其间距不应小于（）mm. ["100","200","300","400"]
You have a very few Cisco 7920 wireless IP phones on your network， but lots of wireless laptops.You want to increase the bandwidth available for the laptops by decreasing the bandwidth reserved for the Cisco 7920 phones. What is the lowest percentage of voice-allocated bandwidthyou can select on the WLAN controller？（） ["25 percent","40 percent","55 percent","75 percent"]
何谓脂水分配系数？它与生物转运和生物转化有何关系？
