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aynuriya aynuriya
wrote...
Posts: 719
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6 years ago
The P wave of an ECG represents
 a. the contraction of the atria.
  b. the contraction of the ventricles.
  c. the depolarization of the ventricles.
  d. the depolarization of the atria.
  e. the repolarization of the ventricles.
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wrote...
6 years ago
D
aynuriya Author
wrote...
6 years ago
very helpful
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