In the ECG pattern, how do segments differ from intervals?
A. Segments involve important cardiac cycle events, while intervals have no significance.
B. Intervals involve important cardiac cycle events, while segments have no significance.
C. Intervals do not include waves or intervals, while segments do.
D. Segments do not include waves or complexes, while intervals do.
E. Segments are much longer in duration than intervals.
Answer: D
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