现在流行的数据模型是层次模型 - 查题网

>> 高等继续教育 / 数据库原理与应用

高等继续教育 / 数据库原理与应用

正确率：100%

网络远程教育期末考试【数据库原理与应用】模拟试题
现在流行的数据模型是层次模型
考题选项：
正确
错误

积分

数据库原理与应用

参考答案：

点击查看答案

佳题速递：

以下可用GC法测定其含量的有中药质量分析与控制

5、已知真空传播的平面电磁波电场为（V/m）试求此波的波长、频率、相速度、磁场强度、波阻抗以及平均能流密度矢量。电磁场与电磁波

10[名词解释题] 什么是盲签名电子商务安全概论

4、影响沥青路面压实的主要因素有（分数：3 分） A. 压实温度 B. 沥青用量 C. 碾压速度 D. 碾压遍数路基路面工程

3[单选题] 某点存在真空时，（） A.该点的绝对压强为负值 B.该点的相对压强为负值 C.该点的绝对压强为零 D.该点的相对压强为零河南理工大学

题型描述: 段落翻译The Industrial Revolution The Industrial Revolution is a long train of changes starting about 1760. It is not alone: it forms one of a triad of revolutions, of which the other two were the American Revolution that started in 1775, and the French Revolution that started in 1789. It may seem strange to put into the same packet an industrial revolution and two political revolutions. But the fact is that they were all social revolutions. The Industrial Revolution is simply the English way of making those social changes. I think of it as the English Revolution. What makes it especially English? Obviously, it began in England. England was already the leading manufacturing nation. But the manufacture was cottage industry, and the Industrial Revolution begins in the villages. The men who make it are craftsmen: the millwright, the watchmaker, the canal builder, the blacksmith. What makes the Industrial Revolution so peculiarly English is that it is rooted in the countryside.英汉翻译(英语教育)