The examples of the development of down time frequencies due to warp and style change have shown that weaving preparation has an important status and should not be neglecte.

The developments in the weaving process itself also affect the weaving preparation.

Clinical analysis of preoperative preparation for pheochromocytoma;

The significance of enema in preoperative preparation of thoracic surgery;

Clinical observation of the application of intestinal hydrotherapy instrument on colorectal preoperative preparations;

To give an interesting and vivid lesson of pathology,I think three steps should be done well,including preparation before class,teaching on the class and summarizing after class.