[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-SX7Ep4t904QopsCWMmKalp4fNQE5ZxC_yuewzirIAk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-10-13 22:01:18",99784640,[8,9,10,11],"硬度","表面粗糙度","尺度","形状",{"courseId":13,"courseImg":14,"courseName":15},"b41694b2786d2da37d746024c6e9338e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4c7af9182a07a7f3cde94a24ba29ab4c.jpg","电力机车职业技能鉴定","决定钻削速度的主要因素之一,是工件的( )",[18,29,38,47,56,59,68,77,86,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],99784636,[22,23,24,25],"方","半圆","三角","平锉刀","锉削圆孔宜选用的锉刀是( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],99784637,[33,34,35,36],"平行夹","钢丝钳","C形夹","V形枕","圆形工件钻孔时,其夹持的方式宜选用( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],99784638,[42,43,44,45],"弹簧","螺栓","螺母","槽型螺母","开口销与( )备件合用,用于销定其他零件",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],99784639,[51,52,53,54],"钻床高度","钻床宽度","钻头最大直径","钻头最大长度","桌上钻床的规格是( )表示",{"answer":57,"createTime":5,"id":6,"options":58,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":27,"type":28},[],99784641,[63,64,65,66],"三角形","梯形","矩形","锯齿型","紧固联结通常用( )螺纹",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":27,"type":28},[],99784642,[72,73,74,75],"铁","铝","铜","钢","下列材料中,硬度最低的金属是( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],99784643,[81,82,83,84],"5-6 mm","6-9 mm","6-10 mm","5-8 mm","韶山3型电力机车闸瓦与车轮踏面间隙为( )",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],99784644,[90,91,92,93],"10","15","20","25","韶山3型电力机车齿轮传动装置中小齿轮的齿数是( )",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],99784645,[99,100,101,102],"2个","4个","6个","8 个","韶山3型电力机车有( ) 横向油压减振器"]