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【单选题】
关于K+的分泌,下列哪一项叙述是错误的()
A.
分泌的部位主要在远曲小管和集合管
B.
分泌的形式是Na+-K+交换
C.
Na+-K+交换和Na+-H+交换是互相竞争的
D.
酸中毒时往往出现低血钾
E.
高钾饮食时尿中可排出大量K+
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