借用
This segment should take about 50 minutes. It contains:
| Slide | Duration |
|---|---|
| 借用值 | 10 minutes |
| 借用检查 | 10 minutes |
| 内部可变性 | 10 minutes |
| 练习：健康统计 | 20 minutes |
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This segment should take about 50 minutes. It contains:
| Slide | Duration |
|---|---|
| 借用值 | 10 minutes |
| 借用检查 | 10 minutes |
| 内部可变性 | 10 minutes |
| 练习：健康统计 | 20 minutes |