2. Match the medical terms in English (on the left) with the ones in Chinese (on the right).
| I | 1) | correspondence between nature and human | A. 阳中之阳 |
| H | 2) | holism | B. 阳中之阴 |
| O | 3) | syndrome differentiation and treatment | C. 阴阳对立 |
| N | 4) | essential qi theory | D. 阴阳调和 |
| M | 5) | yin and yang | E. 阴阳平衡 |
| L | 6) | yang within yin | F. 阴阳消长 |
| K | 7) | yin within yin | G. 阴阳互根 |
| A | 8) | yang within yang | H. 整体观 |
| B | 9) | yin within yang | I. 天人相应 |
| C | 10) | opposition of yin and yang | J. 阴阳转化 |
| G | 11) | mutual rooting of yin and yang | K. 阴中之阴 |
| F | 12) | waxing and waning of yin and yang | L. 阴中之阳 |
| E | 13) | yin-yang balance | M. 阴阳 |
| D | 14) | yin-yang harmony | N. 精气学说 |
| J | 15) | yin-yang conversion | O. 辨证论治 |
(Click to show the keys.)