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| 人工选择为使动、植物能更好地为人类服务，人们按照自己的需要进行人工选择，形成了家畜、家禽和栽培植物 | |||
| 人工选育 | |||
| 人工淘汰; 人工选择 | |||
| 人为淘汰 | |||
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artificial selection : 1 phrase in 1 subject |
| Genetics | 1 |
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