免费成人A片免费看|亚洲有码视频在线观看|美女毛片视频激情超碰|91精品国产欧美一区二区成人|久久无码精品一级A片一高潮不断|亚洲性爰专区三级片不卡免费|欧洲另类AV无码国产免费看|免费观看黄片视频|三级黄色网片在线|国产精品一区二区三区网址

單詞乎

artificial selection

artificial selection是什么意思、artificial selection怎么讀

artificial selection漢語翻譯

【醫(yī)】 人工選擇

artificial selection例句

  1. A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation.
    屬一群擁有共同祖先和明顯特征的有機體，尤指屬于同一物種的一群，通過人工選擇來發(fā)展，通過有控制的繁殖來維持
0
糾錯