[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fwfGdwQnf5_TiWo81HPW9P3r7WXR5DmdZ6kztLCMm594":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":29,"type":30},[],"2023-05-10 06:36:53",32978982,[8,9,10,11],"50cm","45cm","40cm","35cm",{"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},"1000007005","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F44dd6979e2f9473b477b9bbf7fb4d809.png","游泳","14414484","第七章单元测试","仰泳两腿上踢下压交替打水的动作幅度约为( )",[20,31,40,49,52,60,65,70,75,80],{"answer":21,"createTime":5,"id":22,"options":23,"question":28,"source":29,"type":30},[],32978661,[24,25,26,27],"后方","后上方","正上方","前上方","游仰泳时,要求颈部自然伸直,后脑浸入水中,眼看( )","v2",0,{"answer":32,"createTime":5,"id":33,"options":34,"question":39,"source":29,"type":30},[],32978667,[35,36,37,38],"上臂—前臂--手","手--前臂--上臂","前臂—手--上臂","肘--肩—手","仰泳手臂出水时,是按( )的顺序出水的",{"answer":41,"createTime":5,"id":42,"options":43,"question":48,"source":29,"type":30},[],32978980,[44,45,46,47],"上","下","外","内","仰泳手臂入水时,要求掌心向( )",{"answer":50,"createTime":5,"id":6,"options":51,"question":18,"source":29,"type":30},[],[8,9,10,11],{"answer":53,"createTime":5,"id":54,"options":55,"question":58,"source":29,"type":59},[],32978992,[56,57],"对","错","仰泳两腿上下打水要有鲜明的节奏,相对而言,下压动作应柔和放松,上踢动作应快速有力.( )",3,{"answer":61,"createTime":5,"id":62,"options":63,"question":64,"source":29,"type":59},[],32978996,[56,57],"仰泳腿部动作是以髋关节为轴,大腿发力,通过膝关节带动小腿和脚上下交替打水.( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":69,"source":29,"type":59},[],32978997,[56,57],"仰泳两腿上下交替打水动作可形象的比喻为"上踢"和"下压",即"屈腿上踢,直腿下压".( )",{"answer":71,"createTime":5,"id":72,"options":73,"question":74,"source":29,"type":59},[],32979004,[56,57],"游仰泳时,身体纵轴与水平面约成5º~10º\u002F相对稳定的迎角.头部在游进中要保持.( )",{"answer":76,"createTime":5,"id":77,"options":78,"question":79,"source":29,"type":59},[],32979006,[56,57],"仰泳的身体姿势,主要应避免下肢太低、下肢太高和屈髋这三种错误.( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":84,"source":29,"type":59},[],32979010,[56,57],"仰泳也叫做背泳.现代竞技仰泳是采用爬式仰泳技术.( )"]