[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fNAxu2OHHfljJjYk21oF-JDA0HTSX5f2hTN55FwVqCJw":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":111,"createTime":26},16147209,"v1","元器件引线成型可使用( )",[8,9,10,11],"A .尖嘴钳","B .旋具","C .平口钳","D .偏口钳",[],[14,27,31,41,51,61,71,81,91,101],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},16147208,"通信电缆按不同结构分为对称电缆和( )",[18,19,20,21],"A.电力电缆","B.干线通信电缆","C.射频电缆","D.同轴电缆",[],[],0,null,"2023-05-18T17:26:26+08:00",{"id":4,"source":5,"question":6,"options":28,"answer":29,"related":30,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"id":32,"source":5,"question":33,"options":34,"answer":39,"related":40,"type":24,"origin":25,"createTime":26},16147210,"常用的导线剥头方法有刃截法和( )",[35,36,37,38],"A .剥线钳法","B .电工刀法","C .自动剥线机","D .热截法",[],[],{"id":42,"source":5,"question":43,"options":44,"answer":49,"related":50,"type":24,"origin":25,"createTime":26},16147211,"使用剥线钳时,容易产生的缺陷是( )",[45,46,47,48],"A .剥线过长","B .剥线过短","C .芯线损伤或绝缘未断","D .导体截断",[],[],{"id":52,"source":5,"question":53,"options":54,"answer":59,"related":60,"type":24,"origin":25,"createTime":26},16147212,"关于焊料的特性,下列说法正确的是( )",[55,56,57,58],"A .相同直径的焊锡丝,熔点相同","B .含锡量较大的焊料,其导电性较好","C .含锡量较小的焊料,其导电性较好","D .焊料的电导率高于银质材料",[],[],{"id":62,"source":5,"question":63,"options":64,"answer":69,"related":70,"type":24,"origin":25,"createTime":26},16147213,"多芯导线加工时,捻头的目的是( )",[65,66,67,68],"A .防止松散","B .接线良好","C .变成单股导线","D .防止浸锡后线端直径太粗",[],[],{"id":72,"source":5,"question":73,"options":74,"answer":79,"related":80,"type":24,"origin":25,"createTime":26},16147214,"裸导线浸锡时,应( )",[75,76,77,78],"A .直接插入锡锅","B .先涂助焊剂再浸锡","C .先去氧化层,再插人锡锅","D .先去氧化层,再涂助焊剂,然后浸锡",[],[],{"id":82,"source":5,"question":83,"options":84,"answer":89,"related":90,"type":24,"origin":25,"createTime":26},16147215,"剥线钳的主要用途是( )",[85,86,87,88],"A .剥离塑料绝缘导线端头的绝缘外层","B .剥离电缆线端头的绝缘层","C .剥离电缆线芯线端头的屏蔽层","D .剥离电磁线端头的绝缘层",[],[],{"id":92,"source":5,"question":93,"options":94,"answer":99,"related":100,"type":24,"origin":25,"createTime":26},16147216,"以下所列工具,( )不适合做拆焊工具",[95,96,97,98],"A .偏口钳","B .镊子","C .吸锡带","D .吸锡烙铁",[],[],{"id":102,"source":5,"question":103,"options":104,"answer":109,"related":110,"type":24,"origin":25,"createTime":26},16147217,"松香焊剂的溶剂是( )",[105,106,107,108],"A .酒精","B .香蕉水","C .汽油","D .丙酮",[],[],{"courseName":112,"courseImg":113,"workName":114,"workId":115,"count":116,"courseId":117},"电子产品生产工艺","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6b8d502ab10b6320a229dd44797a9e28.png","测验二","0efb5ecf8ff2464b81b15c5d9a3bf8e6",60,"1a1f93688da6af70f45c7b435be1e8e7"]