The fourth-generation theory divides things into four categories-ABCD-according to their urgency and importance.

第四代理论把事情按紧急和重要程度分为ABCD四类。

youdao

The fourth-generation theory divides things into four categories-ABCD-according to their urgency and importance.

第四代理论把事情按紧急和重要程度分为ABCD四类。

youdao