Based on systematic review and meta-analysis,the risk for developing cancers in patients with cystic fibrosis(CF)is know......

采用一种对照饲料和三种分别含４％、６％和８％大豆磷脂的试验饲料饲养初始体重约１５ｇ的草鱼，经５２天饲养后，运用气相色谱仪测定草鱼肝胰脏脂质的脂肪酸......

采用正交设计法L9（3^4）将水体水草覆盖率、活螺蛳投放量、饵料中动物性饵料比例、投饵方式等4个因子设计成9种不同营养供给模式,对中......