题目内容

吸引力法则涉及的概念有哪些?

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某一色谱柱从理论上计算得到的理论塔板数 n很大,塔板高度H很小,但实际上分离效果却很差,试分析原因

He still remembers being taken to Shanghai when he was very young.()

Fill in each blank with the proper form of the word given in brackets. 1.() _________ a mystery, much like Edgar Allan Poe himself.

能吸引 金属或它们的 的性质称为磁性,具有磁性的物体叫磁体

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