At present, China's scientific and technological undertakings have achieved historic, holistic, and major changes in their structure. Significant innovation results have emerged, and some cutting-edge directions have begun to enter parallel and lead the stage. However, it should also be noted that there are still some urgent problems to be solved in China's scientific and technological field. The situation in which key core technologies are constrained by people has not been fundamentally changed. Now, we have ushered in a historic period of confluence of a new round of scientific and technological revolution and industrial change in the world with China's transformation of the development model. Technological independence and control can seize the once-in-a-lifetime historical opportunity, effectively support the construction of a world-leading science and technology power, and truly play the first driving role of innovation and development. The most suitable for this text title is:. ['Work hard to obtain key core technologies.', 'Hold key core technologies in your own hands.', 'Emphasis on stimulating original innovation and core technology research and development.', 'Giving play to the leading role of innovation and mastering key core technologies.']