【判断题】数据库事务日志文件的默认扩展名是ldf。
【单选题】Which of the following statements is NOT true regarding information collected by marketers?
A.
Most managers do not need more information.
B.
Many managers are burdened by data overload.
C.
Managers lack information of the right kind.
D.
Managers have the right information and they have enough of it.
E.
Most managers need better information.
【多选题】下列疾病病原碱性美兰、瑞氏染色等可成两级浓染的是()
【单选题】寄畅园凤谷行窝的两侧通道,东为 ,侵云为 宝塔 别称,此处可见龙光塔高耸入云;
【简答题】根据国家标准的规定,向心滚动轴承按其尺寸公差和旋转精度分为 个公差等级,其中 级精度最低, 级精度最高。
【单选题】数据库中( )数据文件主要用于恢复数据库事务日志信息,每个数据库必须至少有一该文件,默认的文件扩展名是.ldf。