The normal blood pressure of a healthy adult is( ...
单项选择题The normal blood pressure of a healthy adult is( ) A.
high blood pressure 90-130 mmHg, low blood pressure 60-90 mmHg B.
high blood pressure 80-150 mmHg, low blood pressure 60-90 mmHg C.
high blood pressure 100-130 mmHg, low blood pressure 50-80 mmHg