College English textbooks are basically useless for postgraduate entrance examination. I recite words by myself, read more books and pay attention to my composition (two of them account for 70 points).
Mathematics, the general textbooks are Shu Gao (Tongji 5th Edition), Linear Generation (Tongji 4th Edition) and Probability Theory (Zhejiang University 3rd Edition). You can also use other versions, such as those written by Tsinghua. But you must buy a reference book to do it. The exercises in the textbook are too simple.
All books can be sent by mail from higher education publishing house, and are also available in Xinhua Bookstore all over the country. The bookstore next to the university also sells it.