生物能
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什么是孤雌生殖？自然界哪些生物能进行孤雌生殖？？
方君乾xqy 2021-11-17 21:38 孤雌生殖(parthenogenesis)也称单性生殖，即卵不经过受精也能发育成正常的新个体。孤雌生殖现象是一种普遍存在于一些较原始动物种类身上的生殖现象，简单来说就是生物不需要雄性个体[详细]
2023-01-13 21:59 分类：问答Sequences only programming language
I once read about a programming laguage which only first-order values were sequences. An integer value, for instance, was seen as a sequence of integers of one element. I totally forgot the name of th[详细]
2022-12-29 11:49 分类：问答Can't prepare PRAGMA queries on Android
Having this line Cursor c = db.rawQuery(\"PRAGMA table_info(?)\", new开发者_C百科 String[] {tableName});[详细]
2022-12-22 05:37 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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