当血氧饱和度低于多少时，即可出现紫绀A．50％B．60％C．70％D．90％E．85％

作者: rantiku 人气: - 评论: 0

问题当血氧饱和度低于多少时，即可出现紫绀

选项 A．50％ B．60％ C．70％ D．90％ E．85％

答案 E

解析

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