2d (In fact, there are more than 49,400 existing Tang poems, and the answer to this question is rather vague)
3b
4b
6c
As a Mirror of Learning from the Same Resources is a famous historical book in China. The author is Sima Guang, a famous historian in the Northern Song Dynasty. This is a masterpiece of general history, telling the history from the Warring States to the Five Dynasties, with nearly 300 volumes. This history book has extensive materials, clear narration and vivid writing, which is of great reference value to the study of ancient history.