什么是工作分析？工作分析的基本程序是什么？
《中华人民共和国特种设备安全法》规定，（）为特种设备。 ["汽车","锅炉","压力容器","压力管道"]
模纹花坛设计时，主要利用植物的（）特性，来使图案表现的更加清晰而精美。 ["开花","色彩","生长","耐修剪"]
钢管采用螺纹连接时，管节的切口断面应平整，偏差不得超过一扣；丝扣应光洁，不得有毛刺、乱扣、断扣，缺扣总长不得超过丝扣全长的（）％；接口紧固后宜露出2~3扣螺纹。 ["A.5 ","B.10 ","C.15 ","D.20"]
You need make configuration changes to an existing layer 3 switch in the Company network. On a multilayer Catalyst switch， which interface command is used to convert a Layer 3 interface to a Layer 2 interface？（） [" switchport access vlan vlan-id"," switchport"," switchport mode access"," no switchport"," None of the other alternatives apply"]
情感过程
