目的：探讨在实践中学习心电图的效果。
Objective: To investigate effect of learning electrocardiogram in practice.
应该从正确的远景和实践开始，在实践中学习过程。
Start with the right vision and practices, and learn process by doing it.
在群众中锻炼和改造思想，在实践中学习和掌握理论。
In the crowd exercise and ideological reform, In practice, study and control theory.
在群众中锻炼和改造思想，在实践中学习和掌握理论。
In the crowd exercise and ideological reform, In practice, study and control theory.
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