You can't. According to official website, in the College of Science and Technology of Three Gorges University, students' failing courses need to be re-taught, so the failing courses of graduates from the College of Science and Technology of Three Gorges University cannot be replaced by credits. College of Science and Technology of Three Gorges University is an independent institution of higher learning jointly organized by Three Gorges University and Yichang Education Industry Development Corporation, which is registered by the Ministry of Education of China and approved by the Hubei Provincial Department of Education.