Crackajack physicist Yang Zhenning (the picture comes from Oriental IC)Crackajack physicist Yang Zhenning (the picture comes from Oriental IC)Crackajack physicist Yang Zhenning (the picture comes from Oriental IC)Crackajack physicist Yang Zhenning (the picture comes from Oriental IC)Crackajack physicist Yang Zhenning (the picture comes from Oriental IC)Crackajack physicist Yang Zhenning (the picture comes from Oriental IC)Crackajack physicist suddenly gold (the picture comes from Oriental IC)Crackajack physicist suddenly gold (the picture comes from Oriental IC)Crackajack physicist suddenly gold (the picture comes from Oriental IC)Crackajack physicist suddenly gold (the picture comes from Oriental IC)Crackajack physicist suddenly gold. So the issue came, is Yang Laohe suddenly old who is greater? (the picture comes from Oriental IC)