【单选题】【消耗次数：1】
钢筋经冷拉后，强度和塑性均可提高（ ）。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
关于钢筋冷拉的说法错误的是()
①
可以控制钢筋冷拉应力对钢筋进行冷拉
②
可以控制钢筋冷拉率对钢筋进行冷拉
③
用冷拉应力控制钢筋冷拉，冷拉后，钢筋长短不一，对要求等长或定长的预应力筋难以满足要求
④
用冷拉应力控制钢筋冷拉，冷拉后屈服点不稳定
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