[单选题]
Suppose that the build-up of fatty tissue on the:i)mxtc/lwysoilaj 3o (23 s; wall of an artery decb5q /yt ,3cl kcnvxz77reased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a constant c37vxcbzqy/nt ,kl 7 5blood flow?
