An instrument used to record an electrical wave visually on a fluorescent screen is a/an:
A) radioscopy.
B) microscope.
C) oscilloscope.
D) endoscope.
C
Explanation: A) Radioscopy is viewing internal body structures using x-rays.
B) A microscope is used to view very small things.
C) Correct.
D) An endoscope is used to view internal structures.
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