题目：
血浆胰岛素水平升高时，其靶细胞会相应发生哪种改变（）
A.胰岛素受体数目减少
B.胰岛素受体数目增多
C.胰岛素受体亲和力增加
D.胰岛素与受体结合后作用下降
E.胰岛素受体亲和力减低
答案：
参考答案：A
血浆胰岛素水平升高时，其靶细胞会相应发生哪种改变（） A.胰岛素受体数目减少 B.胰
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