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心肌不发生强直收缩的主要原因是:

单选题
2021-07-18 12:22
A、窦房结的自动节律性较低
B、房室结传导延搁
C、心肌的有效不应期较长
D、心肌的传导速度最快
E、心肌的兴奋性较低
查看答案

正确答案
C

试题解析
C

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