建筑装修材料按其燃烧性能应划分为四级：A级、B--1级、B2级、B3级。其中A级表示（）。 ["不燃性","阻燃性","可燃性","易燃性"]
损伤程度的鉴定方法？
You are designing a client computer upgrade strategy for Contoso.Ltd. What should you do？（） [" Use the ldifde command to migrate user settings."," Use the User State Migration Tool （USMT） to Migrate user settings."," Create trust relationships between the Chicago domain and the San Francisco domain. Use the Active Directory Migration Tool （ADMT） to migrate user settings."," Create trust relationships between the forest root domain and the San Francisco domain. Use the Active Directory Migration Tool （ADMT） to migrate user settings."]
会计科目包括（）、（）、所有者权益类、成本类和损益类科目等5类。
以下哪个选项不属于理论创新的原则（） ["科学性","进步性","物质性","完整性或系统性"]
试述凝胶层析的原理与操作要点。
