management has asked bob to post an introductory welcome page when notes users first open the video application in which one of the following places should bob put the welcome message?（） [" in a document named welcome "," in the database about doc "," in the database using doc "," in the first page in the database desig"]
餐饮管理应该包括哪些环节？
货车厂、段修时，制动梁闸瓦托吊质量保证期限为（）。 ["6个月","1年","1个段辅期","1个段修期"]
A system administrator wants to configure a system so that all new users will be put into the database group by default. How would this be accomplished？（） ["remove all other groups from the system","run the command mkuser -default "GROUP=database"","change the default group in \/usr\/lib\/security\/mkuser.default","edit \/etc\/security\/group to move all users to the database stanza"]
焦虑性失眠首选药物（）。
试述低温微生物适应低温环境的机制，及其开发应用价值？
