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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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