[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fHdim5pG9koPaw0ih1SEfhMIafpSHwQGsGtsyoQlD4Sw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":21,"type":22},[],"2025-12-20 01:59:13",274822527,[8,9,10,11],"一条封闭曲线","其他曲线","无断点、自交点、锯齿的光滑曲线","不封闭曲线",{"courseId":13,"courseImg":14,"courseName":15},"6ff62bf2880a7c52e0e324d092cc1088","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5aa1e010016a00d72d96151e16aafd59.png","工程训练C","二维创新设计制作中,二维图形矢量化后要进行必要的编辑,是为了使图形成为()",[18,23,33,41,46,51,61,70,75,80],{"answer":19,"createTime":5,"id":6,"options":20,"question":16,"source":21,"type":22},[],[8,9,10,11],"v1",0,{"answer":24,"createTime":25,"id":26,"options":27,"question":32,"source":21,"type":22},[],"2025-12-23 06:35:03",274822528,[28,29,30,31],"工件接正极、电极接正极","工件接负极、电极接负极","工件接正极、电极接负极","工件接负极、电极接正极","&quot;正极性&quot;加工指的是()",{"answer":34,"createTime":5,"id":35,"options":36,"question":39,"source":21,"type":40},[],274822529,[37,38],"正确","错误","电火花成形加工中,可以用煤油作为工作液.( )",3,{"answer":42,"createTime":5,"id":43,"options":44,"question":45,"source":21,"type":40},[],274822530,[37,38],"电火花成形加工使用的电流为脉冲电流.()",{"answer":47,"createTime":5,"id":48,"options":49,"question":50,"source":21,"type":40},[],274822531,[37,38],"线切割加工只能加工导电材料.()",{"answer":52,"createTime":53,"id":54,"options":55,"question":60,"source":21,"type":22},[],"2025-12-20 08:27:32",275182260,[56,57,58,59],"化学能","光热能","机械能","电热能","激光加工所用的能量是()",{"answer":62,"createTime":53,"id":63,"options":64,"question":69,"source":21,"type":22},[],275182261,[65,66,67,68],"冷却","绝缘","排屑","导电","下列不是线切割工作液作用的是()",{"answer":71,"createTime":53,"id":72,"options":73,"question":74,"source":21,"type":40},[],275182262,[37,38],"在电火花成型机床用成型电极加工孔时,电极不被腐蚀.( )",{"answer":76,"createTime":53,"id":77,"options":78,"question":79,"source":21,"type":40},[],275182263,[37,38],"线切割加工时一般选择皂化液作为工作液.()",{"answer":81,"createTime":25,"id":82,"options":83,"question":88,"source":21,"type":22},[],276184940,[84,85,86,87],"成形刀、样板","阶梯孔、阶梯轴","塑料模中的型腔","任何硬度、高熔点包括经热处理的可导电的金属材料","电火花线切割加工的对象有()"]