【判断题】
厚板的钨极氩弧焊常采用不带坡口的接头。
A. 对
B. 错
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答案
B
解析
暂无解析
相关试题
【判断题】
触电"假死"症状的判定方法是"看"、"听"、"试"。"看"是观察题电者的胸部、腹部有无起伏动作:"听"是用耳贴近触电者的心脏处,听他有无心跳;"试"是用手或小纸条试测口鼻有无呼吸的气流,再用两手指轻压一侧(左或右)喉结旁凹陷处的颈动脉又无搏动感觉。
A. 对
B. 错
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