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正常情况下,人体血压在一天24小时内,并不是像一条平稳的直线,而是波动着,有着“两峰一谷”的现象。两次高峰分别
Under normal circumstances, human blood pressure within 24 hours a day, not like a smooth straight line, but the fluctuations, with “two peaks and one valley ” phenomenon. Two peaks separately