[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fTSZNb08RcSdFo5AyRBVwddLPLG9hsI_iO_xwqrOBvIk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":25,"type":44},[],"2023-11-08 21:05:11",104429642,[8,9,10,11],"50","55","60","65",{"courseId":13,"courseImg":14,"courseName":15},"9650ca92eb2928eb28c4a7f43e098d7c","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1965153f6f5efd2fba07815761982aeb.jpg","物理性污染控制B","某面粉加工厂厂界外属于1类声环境功能区,则其厂界噪声限值昼间执行( )分贝",[18,27,32,37,45,54,57,63,68],{"answer":19,"createTime":5,"id":20,"options":21,"question":24,"source":25,"type":26},[],104429623,[22,23],"正确","错误","人耳的听觉特性是对高频声敏感,对低频声迟钝","v1",3,{"answer":28,"createTime":5,"id":29,"options":30,"question":31,"source":25,"type":26},[],104429627,[22,23],"A计权网络对高频声有很大衰减,对低频声不衰减或稍有增加",{"answer":33,"createTime":5,"id":34,"options":35,"question":36,"source":25,"type":26},[],104429631,[22,23],"传声器也称话筒,是将声信号转换成电信号的声电换能器",{"answer":38,"createTime":5,"id":39,"options":40,"question":43,"source":25,"type":44},[],104429635,[41,42],"A声级","C声级","对同一个声源分别测量A声级和C声级,( )数值更大些",0,{"answer":46,"createTime":5,"id":47,"options":48,"question":53,"source":25,"type":44},[],104429639,[49,50,51,52],"1","2","3","4","室外噪声监测应在无雨雪、无雷电天气进行,声级计需佩戴防风罩,且风速应小于( )级,否则应停止测量",{"answer":55,"createTime":5,"id":6,"options":56,"question":16,"source":25,"type":44},[],[8,9,10,11],{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":25,"type":62},[],104429646,[],"某次噪声监测实验中,共测量2小时,测得峰值噪声级\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffcbb42ae277abde6da71682dc88287b8.webp\">=78dB,其含义是本次测量过程中,有( )分钟的声压级高于78dB,其余( )分钟的声压级低于78dB",2,{"answer":64,"createTime":5,"id":65,"options":66,"question":67,"source":25,"type":62},[],104429650,[],"根据《声环境质量标准》(GB3096-2008)规定,新乡市中心属于( )类声环境功能区,其昼间执行的噪声限值是( )dB,夜间执行的噪声限值是( )dB",{"answer":69,"createTime":5,"id":70,"options":71,"question":72,"source":25,"type":62},[],104429654,[],"根据《工业企业厂界环境噪声排放标准》(GB12348-2008)要求,测点位置一般选在工业企业厂界外( )米,高度( )米以上,距任一反射面距离不小于( )米的位置"]