[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fb5A9BpLyhWevzCGB9rp8VCwRfKhLszjWtGdUWv95arQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-01-10 20:11:46",177143059,[8,9,10,11],"分段沉淀法","胆甾醇沉淀法","醋酸铅沉淀法","明胶沉淀法",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"dd97e1f7f4eee8fe421a0b1e7c34c8d3","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffaad19c1e28a1c766d4ab41573429611.jpg","中药化学","3580059679fe4ccebffefbb1ba14b98b","","可用于分离螺甾烷甾体皂苷和呋甾烷皂苷的方法是( )",[21,32,41,50,59,64,73,76,85,94],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],177143053,[25,26,27,28],"皂苷元的分子量差异","皂苷元的极性差异","皂苷元的结构类型差异","皂苷元的酸碱性差异","分步结晶放分离甾体皂苷元利用( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],177143054,[36,37,38,39],"3%硫酸水解","0.05mol\u002FL硫酸水解","Ca(OH)2 催化水解","酶催化水解","在I型强心苷的水解中,为得到真正苷元,应选用( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],177143055,[45,46,47,48],"0.02-0.05mol\u002FL HCl","3%-5%HCl","NH4OH","NaHCO3 水溶液","水解强心苷时,为了定量的得到糖,水解试剂需选用( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],177143056,[54,55,56,57],"香草醛-浓硫酸反应","亚硝酰铁氰化钠反应","三氯化铁-冰醋酸反应","三氯醋酸反应","用于区别甲型和乙型强心苷的反应是( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":63,"source":30,"type":31},[],177143057,[54,55,56,57],"只对游离2-去氧糖呈阳性反应的是( )",{"answer":65,"createTime":5,"id":66,"options":67,"question":72,"source":30,"type":31},[],177143058,[68,69,70,71],"1%香草醛-浓硫酸","盐酸-对二甲氨基苯甲醛","醋酐-浓硫酸","&alpha; -萘酚-浓硫酸","可用于区别菝葜皂苷和原菝葜皂苷的是( )",{"answer":74,"createTime":5,"id":6,"options":75,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":30,"type":31},[],177143060,[80,81,82,83],"中性皂苷元","可溶于氯仿等亲脂性溶剂","是合成甾体激素的重要原料","与三氯醋酸试剂不反应","有关薯蓣皂苷元叙述错误的是( )",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":30,"type":31},[],177143061,[89,90,91,92],"三氯醋酸(Rosenheim)反应","Salkowski 反应","3,5-二硝基苯甲酸(Kedde)反应","三氯化锑(或五氯化锑)反应","强心苷甾体母核的反应不包括( )",{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":30,"type":31},[],177143062,[98,99,100,101],"25S型比25R 型稳定","25R 型比25S 型稳定","25S 型与25R 型都稳定","25S 型与25R 型都不稳定","具有螺缩酮基本骨架的皂苷元,其中25S 和25R 相比( )"]