To strengthen the construction of socialist material civilization, we must vigorously develop socialist productive forces. Only by further reforming the production relations that restrict the development of productive forces can we vigorously develop socialist productive forces. Without establishing a firm consciousness on the path of reform, it is impossible to go Reform the production relations that restrict the development of productive forces. Which of the following () items can be deduced from the stem. ['To strengthen the construction of socialist material civilization, we must establish a firm sense of reform.', 'People who advocate strengthening the construction of socialist material civilization cannot agree not to take the road of reform.', 'Once a firm consciousness on the path of reform is established, the construction of socialist material civilization can be strengthened.', 'To develop socialist productive forces, it is not necessary to follow the path of reform.']