若要将E-R图http://nos.netease.com/edu-image/FE122F102E9D3AD4B3A495BB063FA6CA.png?imageView&thumbnail=520x520&quality=100转换成关系模式，转换正确的是_________。
举一反三
- 如下所示Chen方法表达的E-R图，将其转换为关系模式。正确的选项是_________。http://nos.netease.com/edu-image/CDAEE3CF8E243FCCD326F5E7A59548CF.png?imageView&thumbnail=520x520&quality=100
- 如下所示Chen方法表达的E-R图，将其转换为关系模式。不正确的选项是________。http://nos.netease.com/edu-image/036C50A30B3A41ADBB08DD6283EB7E3F.png?imageView&thumbnail=520x520&quality=100
- 中国大学MOOC: 假设角 http://nos.netease.com/edu-image/9454BE04B70783537F8315FB45F1D7C6-1443931645905?imageView&thumbnail=520x520&quality=100终边恰好经过点P(3，-4)，则http://nos.netease.com/edu-image/6674A8662F743146C3F820A2CF48BCE9-1443931750374?imageView&thumbnail=520x520&quality=100=
- 如下所示Crow’s Foot方法表达的E-R图，问需要几个关系模式才能实现该E-R图。正确的选项是________。http://nos.netease.com/edu-image/15FF10740B004CBD5EC06BDF474931F6.png?imageView&thumbnail=520x520&quality=100
- http://nos.netease.com/edu-image/D00226428A68B461C3DBE595BE8B126C-1445045240312?imageView&thumbnail=520x520&quality=100