Without altering the selection, you then set the background color to black.

在没有改变选择的情况下，又将背景颜色设置成黑色。

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Project selection and bid price strategy, therefore, come to this article against this background.

在这一背景下，本文对项目选择和投标报价策略进行了研究。

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Project selection and bid price strategy, therefore, come to this article against this background.

在这一背景下，本文对项目选择和投标报价策略进行了研究。

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