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题目内容
(请给出正确答案)
A.Mg![](https://assets.51tk.com/images/153825ba15bd7485_img/e533b4f8ae555f4a.gif)
B.Cl![](https://assets.51tk.com/images/153825ba15bd7485_img/c42e751561e33e41.gif)
C.Fe![](https://assets.51tk.com/images/153825ba15bd7485_img/c9c822e7cbde8dbd.gif)
D.Cu![](https://assets.51tk.com/images/153825ba15bd7485_img/92a149c28823b79f.gif)
E.PO![](https://assets.51tk.com/images/153825ba15bd7485_img/9109bdab9f60fced.gif)
![](https://assets.51tk.com/images/153825ba15bd7485_img/e533b4f8ae555f4a.gif)
B.Cl
![](https://assets.51tk.com/images/153825ba15bd7485_img/c42e751561e33e41.gif)
C.Fe
![](https://assets.51tk.com/images/153825ba15bd7485_img/c9c822e7cbde8dbd.gif)
D.Cu
![](https://assets.51tk.com/images/153825ba15bd7485_img/92a149c28823b79f.gif)
E.PO
![](https://assets.51tk.com/images/153825ba15bd7485_img/9109bdab9f60fced.gif)
对CK有激活作用的离子是
参考答案
参考解析
解析:很多阴离子有激活淀粉酶的作用,其中以Cl
,Br
为最强。镁离子是CK激活的必需离子。
![](https://assets.51tk.com/images/153825ba15bd7485_img/9d13df7d111b9576.gif)
![](https://assets.51tk.com/images/153825ba15bd7485_img/e91b1e16563b0a31.gif)
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