Enterprises can only rely on the short-term advantages brought by innovation to obtain high "innovation" profits, rather than trying to maintain the original technology or product advantages to achieve greater development.____Accordingto this sentence,what is the advantage of davidow effect?
A、When you have a patent granted, you can do it once and for all.
B、It can judge the situation and take the initiative in the competition.
C、Has achieved a leading position in the market, can relax the intensity of research and development.
D、Once the market advantage is established, it cannot be subverteD.