CO 2 是 分子; SO 2 是 分子; BF 3 是 分子; NF 3 是 分子; PF 5 是 分子。(极性/非极性)
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举一反三
【简答题】So what's my best quality? I think my best quality has to be the to laugh at myself. is very much based around laughing at yourself and also laughing with others at themselves. So my best quality defi...
【简答题】I think a whole day will be enough for the tour and I do want to learn more about your factories and their (__) lines, especially the quality control. (Unit 1 Episode 2)