[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fX6ymVI_3j9HsM-Wsh-EYT4YLjfJIjp6OPZ83eQyTiHI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":29,"type":44},[],"2025-12-24 16:53:57",251378574,[8,9,10,11],"氧化焰","碳化焰","中性焰","不一定",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},38,"6ff62bf2880a7c52e0e324d092cc1088","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5aa1e010016a00d72d96151e16aafd59.png","工程训练C","work_40236984","6 焊接章节作业","用气焊焊接低碳钢构件时,一般采用()",[21,31,36,45,55,58,64,69,74,79],{"answer":22,"createTime":23,"id":24,"options":25,"question":28,"source":29,"type":30},[],"2025-05-12 00:13:56",187162176,[26,27],"正确","错误","正逻辑的高电平用&quot;0&quot;表示","v1",3,{"answer":32,"createTime":23,"id":33,"options":34,"question":35,"source":29,"type":30},[],187162177,[26,27],"负逻辑的高电平用&quot;0&quot;表示",{"answer":37,"createTime":5,"id":38,"options":39,"question":43,"source":29,"type":44},[],251378572,[40,41,42],"用直流弧焊发电机焊接","钢板预热","大于6mm的钢板开坡口","为了使厚板焊透,应该使()",0,{"answer":46,"createTime":47,"id":48,"options":49,"question":54,"source":29,"type":44},[],"2025-12-23 07:38:41",251378573,[50,51,52,53],"弯曲变形","扭曲变形","角度变形","波浪变形","焊缝截面上下的大小不一致相差大,造成收缩不均匀,会产生()",{"answer":56,"createTime":5,"id":6,"options":57,"question":19,"source":29,"type":44},[],[8,9,10,11],{"answer":59,"createTime":60,"id":61,"options":62,"question":63,"source":29,"type":30},[],"2025-12-05 10:44:06",251378575,[26,27],"电焊条由焊芯和药皮两部分组成",{"answer":65,"createTime":60,"id":66,"options":67,"question":68,"source":29,"type":30},[],251378576,[26,27],"低碳钢和低合金结构钢是焊接结构的主要材料",{"answer":70,"createTime":60,"id":71,"options":72,"question":73,"source":29,"type":30},[],251378577,[26,27],"焊接时冷却速度越快越好",{"answer":75,"createTime":60,"id":76,"options":77,"question":78,"source":29,"type":30},[],251378579,[26,27],"焊接电弧是由焊条的燃烧而产生",{"answer":80,"createTime":60,"id":81,"options":82,"question":83,"source":29,"type":30},[],251378581,[26,27],"气焊时被焊工件越薄,工件变形越大"]