According to the above materials, science and technology are the primary productive forces. An enterprise and a country can survive only by constantly innovating and mastering core technologies. On the one hand, they should introduce advanced technology, on the other hand, they should be self-reliant and innovative, otherwise they can only be controlled by others. According to the meaning of the question, B is correct, A has nothing to do with the question, and the CD statement is incorrect.
Therefore, choose: B.