Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) In an ECG, the QRS stands for - Sarthaks eConnect
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In an ECG, the QRS stands for

In an ECG, the QRS stands for

A.

arterial depolarizaton

B.

ventricular depolarization
C.

arterial repolarization

D.

ventricular repolarization

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