Methods The questionnaire survey forms were filled out on-the spot by 1800 residents who were at random selected.

方法采取现场无记名自主填写调查表，对应用二阶段抽样法随机抽取的1800名社区居民进行调查。

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The ANN model of the dangerous degree classification also trained by random selected enough samples in the range of known parameters.

采用在已知参数范围内随机选取足够的样本的方法来训练危险度分级的神经网络模型。

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B. 40 Kanamycin resistant seedlings were achieved, 6 Kanamycin resistant seedlings were at random selected for PCR and got the strip.

对抗性筛选出的40株麝香百合苗进行PCR检测，发现有6棵株系扩增出目标条带。

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And then I'll create this function, d1 this distribution d 1, which will, whenever I call it, give me a random, a uniformly selected value between minus and plus volatility.

然后我会创建这个函数，这个概率分布，每次我调用这个函数的时候，他会给我返回一个随机的，按照均匀分布,从正负浮动值之间选择的值。

麻省理工公开课 - 计算机科学及编程导论课程节选

Each month eight women are selected at random to clean the town's public buildings.

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The prices in each shop (and for each frame) were selected at random from between 60 and 120.

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One entrant will be selected at random and invited to go on air.

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