下列有关随机误差的论述中不正确的是()

下列有关随机误差的论述中不正确的是()A (A)随机误差是由一些不确定的偶然因素造成的B (B)随机误差出现正误差和负误差的机会均等C (C)随机误差在分

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人工池按结构分为______。

人工池按结构分为______。A (A)刚性结构和临时简易水池;B (B)刚性结构、柔性结构和临时简易水池;C (C)砖结构和竹结构水池。

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…a scientist with the magic touch of a poet…

…a scientist with the magic touch of a poet…A. …she was a scientist with the mag

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I wish I____ longer this morning, but I had to get

I wish I____ longer this morning, but I had to get up and come to class.A.could

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