Today, the boundaries and separation between natural sciences and social sciences have been broken. Multidisciplinary intersects and penetrates each other, which is the result of highly differentiated and highly integrated science, technology, economics, and social integration. Therefore, the structure of knowledge The rationality and diversification of science and technology are new and higher requirements for science and technology practitioners. What does the author mainly want to express through this text? ['Deep integration has emerged between the natural and social sciences.', 'Technological practitioners will face severe challenges brought by the integration of natural and social sciences.', 'Technological practitioners need to have the comprehensive ability to use multiple aspects of knowledge.', 'Technologists must have not only solid professional knowledge, but also broad knowledge.']