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Pressure measuring devices are not based on: | |
A. | measure of an equivalent height of liquid column [Wrong Answer] |
B. | measure of the force exerted on a fixed area [Wrong Answer] |
C. | measure of some change in electrical or physical characteristics of the fluid [Wrong Answer] |
D. | area measurement by polar planimeter [Correct Answer] |
E. | all of the above. [Wrong Answer] |