[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fzjqwX0o0b6EpUDTagxPP9ZXCo4UjUBlAC_fFjQSqFX0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-05-28 12:59:41",191536638,[8,9,10,11],"垂直于 OZ 轴","平行于 OZ 轴","垂直于 OX 轴","平行于 OX 轴",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},14,"10f9c07356dafeb22f4cb81de2455d45","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Feae920e0aca0203a7ac9a970016eb758.png","工程制图与计算机绘图","8eeedd158778409e884ba61467bc80cc","6.2 正等轴测图","正等轴测图中,平行于 XOY 坐标面的圆,其轴测投影椭圆的短轴方向是( )",[21,32,35,40,50,59,66,71,79,84],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],191536633,[25,26,27,28],"0.82","1","0.5","1.22","正等轴测图的轴向伸缩系数实际值约为( )","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":39,"source":30,"type":31},[],191536643,[25,26,27,28],"为了便于绘制正等轴测图,通常会将轴向伸缩系数简化为( )",{"answer":41,"createTime":42,"id":43,"options":44,"question":49,"source":30,"type":31},[],"2025-05-28 12:59:42",191536648,[45,46,47,48],"0.82a","a","1.22a","1.5a","已知正方体棱长为 a,在正等轴测图中其棱长应量取( )",{"answer":51,"createTime":42,"id":52,"options":53,"question":58,"source":30,"type":31},[],191536652,[54,55,56,57],"具有较强的立体感","三个轴向伸缩系数相等","轴间角不固定","能够表达带有圆的物体","下列关于正等轴测图的说法,错误的是( )",{"answer":60,"createTime":61,"id":62,"options":63,"question":64,"source":30,"type":65},[],"2025-06-17 20:47:00",203010910,[],"正等轴测图的轴间角均为____.",2,{"answer":67,"createTime":61,"id":68,"options":69,"question":70,"source":30,"type":65},[],203010911,[],"绘制正等轴测图时,常用的方法是____法.",{"answer":72,"createTime":61,"id":73,"options":74,"question":77,"source":30,"type":78},[],203010914,[75,76],"正确","错误","正等轴测图中,三个轴间角均为 120&deg;.( )",3,{"answer":80,"createTime":61,"id":81,"options":82,"question":83,"source":30,"type":78},[],203010915,[75,76],"正等轴测图的轴向伸缩系数精确值为 p=q=r=1.( )",{"answer":85,"createTime":61,"id":86,"options":87,"question":88,"source":30,"type":78},[],203010916,[75,76],"在正等轴测图里,平行于坐标平面的圆,其轴测投影都是椭圆.( )"]