【名词&注释】
高血压(hypertension)、微量元素(trace element)、变异系数(coefficient of variation)、标准差(standard deviation)、收缩压(systolic pressure)、舒张压(diastolic blood pressure)、癌基因(oncogene)、不同于(different from)
[单选题]高血压收缩压和舒张压(diastolic blood pressure)的诊断标准:
A. A.收缩压120mmHG,舒张压(diastolic blood pressure)90mmHG
B. B.收缩压140mmHG,舒张压(diastolic blood pressure)90mmHG
C. C.收缩压120mmHG,舒张压(diastolic blood pressure)80mmHG
D. D.收缩压140mmHG,舒张压(diastolic blood pressure)80mmHG
E. E.收缩压l60mmHG,舒张压(diastolic blood pressure)90mmHG