[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fSjs25xJKxr1S56zJjfPc9wHba3TDMj6QIwYs76kK3yc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":28,"type":79},[],"2025-11-18 03:10:31",235962211,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},93,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_47405396","第二章 实践与认识及其发展规律","最近速度比是指轮周速度与喷嘴出口汽流速度之比",[19,30,39,48,57,66,74,80,83,93],{"answer":20,"createTime":5,"id":21,"options":22,"question":27,"source":28,"type":29},[],235962204,[23,24,25,26],"动叶损失","喷嘴损失","湿气损失","余速损失","蒸汽在喷嘴通道中流动是时,动能的损失称为( )损失","v1",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":38,"source":28,"type":29},[],235962205,[34,35,36,37],"越小","不变","越大","先小后大","喷嘴速度系数越小,则喷嘴损失( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":47,"source":28,"type":29},[],235962206,[43,44,45,46],"相等","不等","大于","小于","纯冲动式汽轮机,蒸汽在动叶中流动时出口压力与入口压力的关系是( )",{"answer":49,"createTime":5,"id":50,"options":51,"question":56,"source":28,"type":29},[],235962207,[52,53,54,55],"径向推力","轴向推力","轮周推力","滚动力","汽轮机轴向作用力产生的推力称为( )",{"answer":58,"createTime":5,"id":59,"options":60,"question":65,"source":28,"type":29},[],235962208,[61,62,63,64],"速度级&gt;冲动级&gt;反动级","速度级&gt;反动级&gt;冲动级","反动级&gt;冲动级&gt;速度级","反动级&gt;速度级&gt;冲动级","纯冲动式汽轮机、反动式汽轮机和复速级汽轮机三个级在喷嘴中出口速度的比较是( )",{"answer":67,"createTime":5,"id":68,"options":69,"question":72,"source":28,"type":73},[],235962209,[70,71,23,26],"静叶损失","扇形损失","以下损失属于轮周损失的是( )",1,{"answer":75,"createTime":5,"id":76,"options":77,"question":78,"source":28,"type":79},[],235962210,[8,9],"在能量转换过程中,直接影响蒸汽状态的损失称为级内损失,通常级内损失主要有6种损失",3,{"answer":81,"createTime":5,"id":6,"options":82,"question":17,"source":28,"type":79},[],[8,9],{"answer":84,"createTime":85,"id":86,"options":87,"question":92,"source":28,"type":29},[],"2025-12-10 23:58:22",258993558,[88,89,90,91],"实践是认识的发展动力","实践为认识提供了可能","实践使认识得以产生和发展","实践是检验认识真理性的唯一标准","&quot;社会一旦有技术上的需要,这种需要就会比十所大学更能把科学推向前进.&quot;恩格斯的这段话是指( )",{"answer":94,"createTime":85,"id":95,"options":96,"question":101,"source":28,"type":29},[],258993559,[97,98,99,100],"真理的主观性和实践的客观性所要求的","真理的相对性和实践的决定性所预设的","真理的绝对性和实践的功能所规定的","真理的本性和实践的特点所决定的","1978年关于真理标准大讨论是一场新的思想解放运动.实践之所以成为检验真理的唯一标准是由( )"]