What kind of paper do new models of fax machines use? 

Which of the following statements is TRUE of the permanent cavity created by penetrating trauma?

A) It is filled with disrupted tissues, some air, fluid, and debris. B) It is the damage done when the projectile fragments penetrate. C) It is a space created by a projectile as tissue moves rapidly away in its path. D) It is a potential space, not an actual space.

The amount of time an energized beam is directed towards a specific barrier is:

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