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>


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