单项选择题

A.BMR%=0.70×(脉率+0.70×脉压)-72;正常值为-10%~﹢10%
B.BMR%=0.75×(脉率+0.74×脉压)-72;正常值为-10%~﹢10%
C.BMR%=0.70×(脉率+0.70×脉压)-72;正常值为-20%~﹢20%
D.BMR%=0.75×(脉率+0.74×脉压)-72;正常值为-20%~﹢20%
E.BMR%=0.75×(脉率+0.74×脉压)-70;正常值为-10%~﹢10%