The chip industry is a global division of labor and cooperation industry, and its distribution is very wide. The problems and challenges faced by different fields are also very different, and no country can have a complete and independent controllable chip industry chain. But a country wants To gain the right to speak in the chip industry, at least you should master the key technologies of certain links in the industrial chain, so as to avoid being controlled by others. Based on the above statement, what must be the following judgments correct? ['As long as a country has the right to speak in the chip industry, the country may have a complete chip industry chain.', "If a country does not have the key technologies of the chip industry, the country's chip industry will be constrained by people.", "If a country's chip industry is not to be controlled by others, it must have a complete chip industry chain.", 'If a country has mastered the key technologies of the chip industry, then the country must have the right to speak.']