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1. |
What is range of ultrasonic energy transmitted into the body? |
A. | 0-5 mW/cm<sup>2</sup> |
B. | 5-10 mW/cm<sup>2</sup> |
C. | 10-15 mW/cm<sup>2</sup> |
D. | 15-20 mW/cm<sup>2</sup> |
Answer» D. 15-20 mW/cm<sup>2</sup> | |