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1. |
The area of the P wave is ______ wide and ends ______ before the R wave peak. |
A. | 120 ms, 200 ms |
B. | 200 ms, 120 ms |
C. | 100 ms, 215 ms |
D. | 215 ms, 100 ms |
Answer» C. 100 ms, 215 ms | |