Benign enzootic paresis affects young , unweaned piglets for the most part.良性地方性轻瘫大部分侵害未断乳小猪.The piglets had the buttermilk and loved it.小猪喝脱脂乳而且很爱喝.The piglets are taken from the sow to be fattened for market.这些小猪被从母猪身边...
银行的经营必须追求成本效益。The bank must be run in a cost-effective way.采用的方法很老套，没什么效益。The methods employed are old-fashioned and uneconomical.这一研究方法可能会产生哪些实际效益？What are some of the practical benefits likely to be of this line of res...
铁线蕨 科:一科广泛分布的蕨类植物, 特别是在美洲潮湿的热带分布较多.Adiantaceae ( maidenhair ferns ) A family of ferns ( Filicinophyta ) found throughout the world, especially in the moist American tropics....