 |
| |||
| atributo obligatorio | |||
| atributo obligatorio (An object attribute for which values must be specified) | |||
|
mandatory attribute : 2 短语, 1 学科 |
| 信息技术 | 2 |
|
| |||
| atributo obligatorio | |||
| atributo obligatorio (An object attribute for which values must be specified) | |||
|
mandatory attribute : 2 短语, 1 学科 |
| 信息技术 | 2 |