With the increasing of external copper levels, the POD and CAT activity increase in synchronous,and CAT/POD is no obvious change basically. Moreover the total activity in Matsumoto Nishiki is most highest.

• 随施铜量增加松本锦、藤牧一号和嘎啦POD与CAT同步升高,CAT/POD基本上没有变化;