[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fCQkBGJf-iDAbjIb4Jj4TzEu9yfMJz2zIf7QtxCfI9e4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":26,"type":27},[],"2023-11-05 17:24:48",103110799,[8,9,10,11],"由于激波引起的边界层分离","机翼上表面的膨胀波","重心移动","边界层控制",{"courseId":13,"courseImg":14,"courseName":15},"732e69d48439bffe2b5bd6a9c4e47c97","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2899b8328a39891ca6bb86f4cd9961b7.jpg","飞行原理（第十二期）","高速抖振由以下哪个因素引起( )",[18,28,31,39,47,56,64,73,82,91],{"answer":19,"createTime":5,"id":20,"options":21,"question":25,"source":26,"type":27},[],103110798,[22,23,24],"后掠翼","涡流发生器","机翼上反角","下列哪种方式可以提高飞机的临界马赫数.()","v1",0,{"answer":29,"createTime":5,"id":6,"options":30,"question":16,"source":26,"type":27},[],[8,9,10,11],{"answer":32,"createTime":5,"id":33,"options":34,"question":38,"source":26,"type":27},[],103110800,[35,36,37],"更大的膨胀","较小的压缩","更大的压缩","相同马赫数下,正激波与斜激波相比较有( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":46,"source":26,"type":27},[],103110801,[43,44,45],"仅取决于迎角","减小","增大","等表速飞行,重力减小,临界马赫数( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":26,"type":27},[],103110802,[51,52,53,54],"500节","320节","480节","600节","如果马赫数为0.8和真空速为 400 kt,音速等于( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":63,"source":26,"type":27},[],103110803,[60,61,62],"跨音速流动","超音速流动","亚音速流动","临界马赫数到马赫数等于1.3之间称为( )",{"answer":65,"createTime":5,"id":66,"options":67,"question":72,"source":26,"type":27},[],103110804,[68,69,70,71],"迎角增加","干扰阻力增加","激波阻力增加","摩擦阻力增加","超过临界马赫数后,阻力增加主要是由于( )",{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":26,"type":27},[],103110806,[77,78,79,80],"总压降低","温度升高","速度增加","密度降低","空气通过正激波后,下列描述正确的是( )",{"answer":83,"createTime":5,"id":84,"options":85,"question":90,"source":26,"type":27},[],103110807,[86,87,88,89],"熵不变","熵增加","熵减小","与熵的变化无关","在绝热变化过程的孤立系统中,如果过程不可逆,则( )",{"answer":92,"createTime":5,"id":93,"options":94,"question":98,"source":26,"type":27},[],103110808,[95,96,97],"飞行马赫数","局部马赫数","临界马赫数","飞机周围流场中任一点的速度与该点音速的比值称为( )"]