单选题:知识点:舒张 在一个心动周期中,下列哪个时期主动脉压最低

题目内容:
知识点:舒张
在一个心动周期中,下列哪个时期主动脉压最低 A.等容收缩末
B.等容舒张末
C.心房收缩期末
D.快速充盈期末
E.减慢充盈期末

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