[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f85iXPn_4kH9OGeYiNDmGxdgSUUdUkHMAiIFvhNqqtfo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":12,"related":13,"source":23,"type":46},[],"2026-01-16 03:56:29",313115025,[],{"courseId":9,"courseImg":10,"courseName":11},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","为什么多层平壁中温度分布曲线不是一条连续的直线而是一条折线",[14,25,34,43,47],{"answer":15,"createTime":5,"id":16,"options":17,"question":22,"source":23,"type":24},[],313115022,[18,19,20,21],"冰","液态水","水蒸气","相同","根据导热机理,水在( )状态下导热系数最小","v1",0,{"answer":26,"createTime":5,"id":27,"options":28,"question":33,"source":23,"type":24},[],313115023,[29,30,31,32],"25℃\u002Fm,方向垂直于外墙,指向室外","25℃\u002Fm,方向垂直于外墙,指向室内","100℃\u002Fm,方向垂直于外墙,指向室外","100℃\u002Fm,方向垂直于外墙,指向室内","有一房间,外墙厚度400mm,室内墙表面温度为25℃,室外墙表面温度-15℃,则外墙的温度梯度为( )",{"answer":35,"createTime":5,"id":36,"options":37,"question":42,"source":23,"type":24},[],313115024,[38,39,40,41],"温度梯度为1K\u002Fm时单位时间内单位面积热流量","温度为1K时单位时间内单位面积热流量","温度为1K时单位时间内热流量","温度梯度为1K\u002Fm时单位时间内热流量","热导率在数值上等于( )",{"answer":44,"createTime":5,"id":6,"options":45,"question":12,"source":23,"type":46},[],[],4,{"answer":48,"createTime":5,"id":49,"options":50,"question":51,"source":23,"type":52},[],313115026,[],"已知砖的壁厚为370mm,表面积为15m2,两侧壁面温度分别为-20℃和18℃,热导率为1.2W\u002F(m.K).试求通过砖壁的热流密度",7]