心房收缩挤入心室的血液量约占心室总充盈量的(  )A.5% B.10% C.30% D.50% E.80%

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问题 心房收缩挤入心室的血液量约占心室总充盈量的(  )

选项 A.5%
B.10%
C.30%
D.50%
E.80%

答案C

解析
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