【简答题】创建视图v1,可以实现查询未还书的图书编号,书名与借出日期。并检索该视图,
【单选题】John and Steven stopped at the top of the hill to admire the ______ while Mary looked at the timetable.
【单选题】While he was ______ about in the street, Mary came up to him.
【单选题】Mary is rich, ______ John is poor.
【判断题】( 2014年)企业已作为损失处理的资产,在以后纳税年度又全部或部分收回时,应当计入当期收入。( )