It's different. According to information from official website of Nanjing Education Bureau, Nanjing 3+4 curriculum is an extension of senior high school curriculum, mainly to improve the learning efficiency and academic level of senior high school students and cultivate high-level talents. Therefore, Nanjing 3+4 course Chinese Mathematics English is different from ordinary high school textbooks. The learning difficulty of Nanjing 3+4 course is high, and the requirements for students' learning ability and autonomous learning ability are also high.