[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fbthr4LEvwcXjcZ_6FAGBtpZJ-Rgx8bzPh6FADGmgRRk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":29,"type":78},[],"2025-06-17 20:47:00",203010914,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},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,三个轴间角均为 120&deg;.( )",[19,31,40,45,55,64,70,75,79,84],{"answer":20,"createTime":21,"id":22,"options":23,"question":28,"source":29,"type":30},[],"2025-05-28 12:59:41",191536633,[24,25,26,27],"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":32,"createTime":21,"id":33,"options":34,"question":39,"source":29,"type":30},[],191536638,[35,36,37,38],"垂直于 OZ 轴","平行于 OZ 轴","垂直于 OX 轴","平行于 OX 轴","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( )",{"answer":41,"createTime":21,"id":42,"options":43,"question":44,"source":29,"type":30},[],191536643,[24,25,26,27],"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":46,"createTime":47,"id":48,"options":49,"question":54,"source":29,"type":30},[],"2025-05-28 12:59:42",191536648,[50,51,52,53],"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":56,"createTime":47,"id":57,"options":58,"question":63,"source":29,"type":30},[],191536652,[59,60,61,62],"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":65,"createTime":5,"id":66,"options":67,"question":68,"source":29,"type":69},[],203010910,[],"正等轴测图的轴间角均为____.",2,{"answer":71,"createTime":5,"id":72,"options":73,"question":74,"source":29,"type":69},[],203010911,[],"绘制正等轴测图时,常用的方法是____法.",{"answer":76,"createTime":5,"id":6,"options":77,"question":17,"source":29,"type":78},[],[8,9],3,{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":29,"type":78},[],203010915,[8,9],"正等轴测图的轴向伸缩系数精确值为 p=q=r=1.( )",{"answer":85,"createTime":5,"id":86,"options":87,"question":88,"source":29,"type":78},[],203010916,[8,9],"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.( )"]