[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fV7micshC7n-5qRwb-6dUxFIfYDYc8N66MDnqVxjXlSo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":28,"type":29},[],"2024-01-01 20:18:05",125217172,[8,9,10,11],"收腿","向下打水","向上打水","鞭状打水",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},48,"b587cb83f38a9c4baa5a751e0cb3a836","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7f5146579294ccef65f3c370937de574.png","游泳运动技术基础","9ef658813a3844d89720be4463ace7ee","蛙泳(47道题)","蛙泳腿的动作阶段包括( )",[21,30,33,42,51,60,69,78,87,96],{"answer":22,"createTime":5,"id":23,"options":24,"question":27,"source":28,"type":29},[],125217171,[25,26,8,11],"滑行","脚外翻","蛙泳( )动作的作用是增大对水面","v1",0,{"answer":31,"createTime":5,"id":6,"options":32,"question":19,"source":28,"type":29},[],[8,9,10,11],{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":28,"type":29},[],125217173,[37,38,39,40],"呛水","腿部下沉","推进力减小","浮力减小","蛙泳腿技术中,如果没有翻脚动作,将导致( )",{"answer":43,"createTime":5,"id":44,"options":45,"question":50,"source":28,"type":29},[],125217175,[46,47,48,49],"外翻","勾脚","自然放松","内扣","蛙泳腿部动作的滑行阶段,两脚应( )",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":28,"type":29},[],125217176,[55,56,57,58],"两脚并拢,膝盖分开","膝盖并拢,两脚分开","两脚距离大于两膝距离","两脚距离小于两膝距离","蛙泳腿部技术翻脚教学难点是( )",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":28,"type":29},[],125217177,[64,65,66,67],"平收腿","撅臀",""芭蕾脚"","抬头蛙泳动作","蛙泳腿部技术没有滑行动作容易造成( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":28,"type":29},[],125217178,[73,74,75,76],"俯卧池边蛙泳腿练习","半陆半水坐撑池边蛙泳腿练习","扶板蛙泳腿练习","扶池边蛙泳腿练习","( )的动作要求是:双腿伸直,身体稍后仰,两手在体后撑地",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":28,"type":29},[],125217180,[82,83,84,85],"两膝间距离过窄","两膝间距离太宽","两膝间距离与肩同宽","两膝间距离小于肩宽","蛙泳平收腿错误动作是由( )造成的",{"answer":88,"createTime":5,"id":89,"options":90,"question":95,"source":28,"type":29},[],125217182,[91,92,93,94],"一定要蹬完后再夹水","不要蹬完后再夹水","一定要夹完后再蹬水","不要夹完后再蹬水","纠正蛙泳腿产生蹬水路线错误的方法是:让学员了解( )",{"answer":97,"createTime":98,"id":99,"options":100,"question":105,"source":28,"type":29},[],"2024-01-01 20:18:06",125217183,[101,102,103,104],"膝盖尽量并拢","膝盖尽量分开","脚后跟远离臀部","脚后跟贴近臀部","纠正蛙泳腿撅臀的错误动作,可以提示学员控制收大腿的幅度,收小腿,( )"]