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【泵技术版每日一题】2020年4月11日(公布答案前答对随机抽取坛友奖励10财富)

2020-04-13View Original

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161设备使用维修能力,th=1938}二次灌浆的基础表面须用水冲洗干净并浸湿。当环境温度低于()℃时,应采取防冻措施,且清除基础积表水。 A、-10 B、0 C、5 (次日公布前一天答案,公布前答对随机抽取幸运坛友数名每人奖励10财富,公布后答对奖励5财富,知识无价,重在参与) 最近有点忙,发题和回复评分有点慢,但是再忙再晚我也会发,也会回复大家,为了论坛的发展,也为了坛友您自身的发展,多多支持,万分感谢,也感谢一路走来一直支持我的朋友,谢谢你们。

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