【简答题】It's about time we ___________________ (democracy) the organization of this company.
【单选题】It's already five o' clock now. Don't you think it's about time______?
【简答题】It's about time that we got the kitchen _________ (repaint).
【单选题】It's already 5 o'clock now. Don't you think it's about time we______ home?
【多选题】印度尼西亚人的民族服装包括以下哪些()。
【单选题】概念数据模型简称概念模型,它是对现实世界的转换,主要用来描述现实世界的概念化结构,是数据库设计人员和用户交流的工具。概念模型最常用的表示方法是( )。