有关正常心音的描述,不正确的是A.正常只能听到第一心音(S1)和第二心音(S2),B.S1音调低钝,强度较响C.S2音调较高而脆,在心底部最响...

作者: rantiku 人气: - 评论: 0
问题 有关正常心音的描述,不正确的是
选项 A.正常只能听到第一心音(S1)和第二心音(S2), B.S1音调低钝,强度较响 C.S2音调较高而脆,在心底部最响 D.部分儿童和青少年可闻及S4 E.S3出现在心室舒张早期
答案 D
解析

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