Does anyone in China know the tricks of Yin and Yang gossip now?

I guess he knows a lot. There are also many people who have passed the examination of non-governmental organizations, which proves that he knows. But none of them are certified by national authorities. At present, no national authority has tested such people. According to the ancient patriarchal clan system, the invigilator is new, who really understands it and stays in exile on an uninhabited island. If you take this test, it is estimated that few dare to say that he knows.