Test analysis: This topic examines the historical facts of engraving printing in Sui and Tang Dynasties. The Diamond Sutra published in the Tang Dynasty is the earliest block printing with exact date in the world. The key message in the title is "In the Tang Dynasty, the most advanced printing method was block printing, and the following is the earliest block printing with exact date in the world". According to what you have learned, the correct option is B.
Comments: This question is less difficult. To examine students' ability to remember historical knowledge, students must master basic knowledge. Students should pay attention to summing up many firsts in the ancient history of China, such as the oldest stone arch bridge in the world and the first female emperor Wu Zetian in China history. The first unified feudal dynasty in the history of China, the Mogao Grottoes is one of the largest art treasures in the world, and so on. These are the key contents to be investigated.