【单选题】
下列事种脏器病变时，血清 ALT活性可能会明显增高？
A. A 肝脏
B. B 心脏
C. C 肾脏
D. D 肺脏
E. E 脾脏
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答案
A
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氢平衡是反映体内蛋白质代谢情况的一种表示方法，指：
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