[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fmbUcu2KhLRQ69-LAmLVNEDtqD0rNAf6JEXbPVzyUtps":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2023-12-19 22:36:12",117443613,[8,9,10,11],"产气","不产气","疑似产气","所有",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},32,"576be769c57b3821fdb75539feaab409","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fff31e4d2a25ae6ca59262bb59fef1fcf.png","食品微生物检验（第4期）","ac10b5c6f99f416a8df44f043c85b20d","大肠菌群检验","在大肠菌群检验第一法中,我们必须将( )的LST肉汤发酵管接种煌绿乳糖胆盐(BGLB)肉汤发酵管,进行复发酵试验",[21,33,42,45,54,61,66,75,84,92],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2023-12-19 22:36:11",117443595,[26,27,28,29],"典型菌落为黑色,菌落周围有白色的胆盐沉淀环","典型菌落为紫红色,菌落周围有红色的胆盐沉淀环","典型菌落为紫红色,菌落周围有白色的胆盐沉淀环","典型菌落为黑色,菌落周围有红色的胆盐沉淀环","下列关于大肠杆菌在结晶紫中性红胆盐琼脂平板上的菌落特征说法正确的是( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":31,"type":32},[],117443601,[37,38,39,40],"月桂基硫酸盐胰蛋白胨(LST)肉汤","煌绿乳糖胆盐(BGLB)肉汤","结晶紫中性红胆盐琼脂(VRBA)","平板计数琼脂","大肠菌群检验不需要用到的培养基是( )",{"answer":43,"createTime":5,"id":6,"options":44,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":46,"createTime":5,"id":47,"options":48,"question":53,"source":31,"type":32},[],117443630,[49,50,51,52],"3,3,24","3,3,48","2,2,24","2,2,48","大肠菌群检验的第一法,首先选取( )个适宜的连续稀释度样品匀液,每个稀释度接种( )管月桂基硫酸盐胰蛋白胨(LST)肉汤发酵管,培养( )小时. ( )",{"answer":55,"createTime":5,"id":56,"options":57,"question":60,"source":31,"type":32},[],117443636,[37,58,38,59],"缓冲蛋白胨水或碱性蛋白胨水","乳糖发酵管","GB 4789.3-2016中大肠菌群MPN计数复发酵试验所用培养基是",{"answer":62,"createTime":5,"id":63,"options":64,"question":65,"source":31,"type":32},[],117443646,[37,58,38,59],"GB 4789.3-2016中大肠菌群MPN计数初发酵试验所用培养基是",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":31,"type":32},[],117443658,[70,71,72,73],"2.0","20","200","以上都不对","1. 依据GB 4789.3-2016第一法大肠菌群MPN计数法,测定结果1:100(第一稀释度)3支试管分别为阳性,阴性,阳性; 1:1000(第二稀释度)3支试管分别为阳性,阴性,阴性; 1:10000(第三稀释度))3支试管分别为阳性,阴性,阴性.将各稀释度阳性管接种BGLB肉汤管验证后均呈现阳性,则该样品的大肠菌群数为结果菌落总数报告为( )",{"answer":76,"createTime":77,"id":78,"options":79,"question":83,"source":31,"type":32},[],"2023-12-19 22:36:13",117443663,[80,81,82,73],"3","<3.0","检验失败","1. 依据GB 4789.3-2016第一法大肠菌群MPN计数法,测定结果1:10(第一稀释度)3支试管分别为阴性,阴性,阴性; 1:100(第二稀释度)3支试管分别为阴性,阴性,阴性; 1:1000(第三稀释度))3支试管分别为阴性,阴性,阴性.则该样品的大肠菌群数为结果菌落总数报告为( )",{"answer":85,"createTime":77,"id":86,"options":87,"question":91,"source":31,"type":32},[],117443669,[88,89,90,73],"36","360","3600","1. 依据GB 4789.3-2016第一法大肠菌群MPN计数法,测定结果未稀释样品3支试管分别为阳性,阳性,阴性; 1:10(第一稀释度)3支试管分别为阳性,阳性,阳性; 1:100(第二稀释度))3支试管分别为阳性,阴性,阴性.将各稀释度阳性管接种BGLB肉汤管验证后均呈现阳性,则该样品的大肠菌群数为结果菌落总数报告为( )",{"answer":93,"createTime":77,"id":94,"options":95,"question":98,"source":31,"type":32},[],117443679,[88,96,97,73],"3.6","0.36","1. 依据GB 4789.3-2016第一法大肠菌群MPN计数法,测定结果1:10(第一稀释度)3支试管分别为阳性,阳性,阴性; 1:100(第二稀释度)3支试管分别为阳性,阳性,阳性; 1:1000(第三稀释度))3支试管分别为阳性,阴性,阴性.将各稀释度阳性管接种BGLB肉汤管验证后均呈现阳性,则该样品的大肠菌群数为结果菌落总数报告为( )"]