存货运输过程中发生的存储费用应计入存货的（）。 ["进货成本","储存成本","进价成本","缺货成本"]
简述代码设计的原则。
带式输送机使用液力偶合器传递动力有什么优点？
性功能障碍
Your company has a network that has 100 servers. A server named Server1 is configured as a file server. Server1 is connected to a SAN and has 15 logical drives.You want to automatically run a data archiving script if the free space on any of the logical drives is below 30 percent.You need to automate the script execution. You create a new Data Collector Set. What should you do next？（） ["Add the Event trace data collector.","Add the Performance counter alert.","Add the Performance counter data collector.","Add the System configuration information data collector."]
单级离心泵壳的作用是什么？
