63. At the time point indicated on the ECG the _____ (A) atria and ventricles would both be relaxed (B) ventricles would be relaxed and atria would be contracting (C) atria and ventricles would both be contracting (D) atria would be relaxed and ventricles would be contracting
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Step 1: The ECG measures the electrical activity of the heart. Show more…
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