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Q. |
What is blood pressure? |
A. | the pressure of blood on the heart muscle |
B. | the pressure of blood exerted on the walls of arteries and veins |
C. | the pressure of blood on the walls of veins only |
D. | the pressure of blood on the walls of arteries only |
Answer» B. the pressure of blood exerted on the walls of arteries and veins |
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