A . A.13.3~20.0kPa(100~150mmHg)B . B.20.0~26.7kPa(150~200mmHg)C . C.26.7~33.4kPa(200~250mmHg)D . D.33.3~40.0kPa(250~300mmHg)E . E.40.0~46.7kPa(300~350mmHg)
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