[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fJKGWIvOSc3IRPBIhr9XtmDJwNLbhUlM6rLiwPlzoHRE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-06-05 16:11:27",194705962,[8,9,10,11],"杆件","薄板","块体","薄膜",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},36,"0c9dc63587eb5b2ffae012fc65d62047","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbee8e2060a05dd3eef309234ae1824e8.png","建筑力学","work_44106566","作业三","材料力学主要研究的对象是( )",[21,33,42,50,59,68,76,85,94,103],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-05 16:11:26",194705941,[26,27,28,29],"跨中截面","A截面","B截面","不确定","分析题:根据下图AB杆受力情况回答问题.弯矩最大处在( )\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7b33ec220d08dbd790a2c6d193ec5ce0.png\">","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],194705943,[37,38,39,40],"不封闭","自行封闭","相互平行","汇交于一点","平面汇交力系平衡的必要和充分的几何条件是力多边形",{"answer":43,"createTime":23,"id":44,"options":45,"question":49,"source":31,"type":32},[],194705945,[46,8,47,48],"板或壳","实体和杆件","板和杆件","杆系结构中的构件是( )",{"answer":51,"createTime":23,"id":52,"options":53,"question":58,"source":31,"type":32},[],194705948,[54,55,56,57],"A点的约束为固定端支座","B点的约束为固定端支座","A点的约束为可动铰支座","B点的约束为可动铰支座","分析题:根据下图AB杆受力情况回答问题.AB杆约束反力的分析,下列正确的是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7b33ec220d08dbd790a2c6d193ec5ce0.png\">",{"answer":60,"createTime":23,"id":61,"options":62,"question":67,"source":31,"type":32},[],194705951,[63,64,65,66],"0°","90°","120°","180°","二力汇交,其大小相等并与其合力大小相等,此二力之间的夹角必为",{"answer":69,"createTime":23,"id":70,"options":71,"question":75,"source":31,"type":32},[],194705953,[72,73,29,74],"力的大小","0","1","当力与坐标轴垂直时,力在该轴上的投影为( )",{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":31,"type":32},[],194705955,[80,81,82,83],"A支座约束反力为0,B支座约束反力不为0","A支座约束反力不为0,B支座约束反力为0","A,B支座约束反力均为0","A,B支座约束反力均不为0","分析题:不计杆件自重,根据下图回答问题.关于上图支座的约束反力说法正确的是( ). \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F51cfac8b2efe2a77f7ab87ccbea30ca4.png\">",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":31,"type":32},[],194705958,[89,90,91,92],"A点为可动铰支座","B点为可动铰支座","B点为固定端支座","以上说法都不对","分析题:如图所示,横梁AB长l=5m.梁上受到两个力偶的作用,其力偶矩为m1=10kN.m,m2=20kN.m,不计梁的自重.试分析后回答:关于支座类型的描述正确的是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd192d09f4629343a5f7e75b9ee02dc90.png\">",{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":31,"type":32},[],194705960,[98,99,100,101],"一定等于零","不一定等于零","一定不等于零","仍等于该力的大小","某力F在某轴上的投影的绝对值等于该力的大小,则该力在另一个任意与之共面的轴上投影为( )",{"answer":104,"createTime":5,"id":6,"options":105,"question":19,"source":31,"type":32},[],[8,9,10,11]]