那个,为什么有说每个水分子中有四个氢键也有说有两个氢键的,或者问什么时候说是四个什么时候说是两个? 知乎 Template




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Try and sketch some of theseLips, Slack rope, Bus, Musk ox, Glasses, Dragon, Surrey, Raccoon, Bolo tie, Birdhouse, view more ideas


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sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )

tomski那个,为什么有说每个水分子中有四个氢键也有说有两个氢键的,或者问什么时候说是四个什么时候说是两个? 知乎 coloring