搜题

问题更新时间2023/4/3 12:59:00

4、 Any solution for which the concentration is precisely known is called a standard solution.

答案

参参考考答答案案：：准确浓度已知的溶液被称为标准溶液。

出自：文鼎教育 >> 乐山师范学院专业英语

王老师:19139051760(拨打)

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第1题

Before the first non-stop flight made in 1949, it ________ necessary for all planes to land for refueling. A.would be

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第2题

黄土隧道施工应根据断面大小、围岩级别采用（）、三台阶弧形导坑法、双侧壁导坑法、CRD法等。

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第3题

Sir Denis, who is 78, has made it known that much of his collection _________ to the nation. A.has left B.is to leave

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第4题

水底隧道施工方法包括_______和_______。

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