Examlex
Suppose that the class Mystery is derived from the class Secret. Consider the following statements. Secret mySecret = new Secret() ; Secret secRef; Mystery myMystery = new Mystery() ; Mystery mysRef; secRef = myMystery; Which of the following statements is legal in Java? (i) mysRef = (Mystery) mySecret; (ii) mysRef = (Mystery) secRef;
ECG
Electrocardiogram, a test that records the electrical activity of the heart to detect heart problems.
T Wave
A feature on an electrocardiogram (ECG) representing the repolarization of the ventricles of the heart.
R Wave
Part of the QRS complex in an electrocardiogram (ECG) representing ventricular depolarization, which precedes ventricular contraction.
Heart Skeleton
A framework of dense connective tissue in the heart that provides structural support and attachment for cardiac muscle and valves.
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