For these questions, choose the option that best completes the gap 

The doctor listened to my heartbeat with a _______

A. cardiograph
B. stethoscope
C. chromometer
D. microscope

Correct Answer:

Option B – stethoscope

Explanation

stethoscope; a medical instrument for listening to the action of someone’s heart or breathing, typically having a small disc-shaped resonator that is placed against the chest, and two tubes connected to earpieces.

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