2. Xiamen University and Tongji University are both 985 comprehensive universities, both of which are first-class universities in China, and there is no comparability in the level of running schools.

3. Xiamen University has a national first-class key discipline of chemistry, which is also one of the best in China, so it is better than Tongji in specialty.

4. Based on the above considerations, it is suggested that Xiamen University, Peking University, Nankai University, Jilin University, Fudan University, Nanjing University, Zhejiang University and University of Science and Technology of China should be preferred; Then consider the inorganic chemistry and polymer chemistry and physics of Sun Yat-sen University, the analytical chemistry of Tsinghua University, Wuhan University and Hunan University, the organic chemistry of Sichuan University and Lanzhou University, and the physical chemistry of Beijing Normal University, Fuzhou University and Shandong University. Finally, consider Tongji University you mentioned.