You can't. Official website of Hohai University said that according to the regulations, you must pass all theoretical courses to declare your graduation thesis, and you can't apply for your graduation thesis without completing the exam. Hohai University, referred to as "Hehai" for short, is a national key university with the characteristics of water conservancy and the advantages of engineering, and the coordinated development of economics, management, literature, science, law, art, teaching and agriculture.