八年级学生现在在学习心血管系统，他们在各种不同水平的活动中测试了自己的心率。然后，他们计算了自己的心率最大值，并将其与他们的静息心率进行比较，并建议了一个心率最大值作为心血管健康的大致内容。最大的亮点是，学生们解剖了羊的心脏并分析了其结构和功能!
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