被污染的废物经常被随意倒掉，周边土地因此而变得很贫瘠。The polluted waste is often dumped, making the surrounding land infertile.黑麦耐贫瘠的酸性土壤。Rye is tolerant of poor, acid soils.土壤这样贫瘠，植物能获得足够的养分吗？Can plants obtain adequate nourishment from such poor...
冷水中生物的基础代谢速度要低很多。Basal metabolism is much lower for creatures in cold water.蓝鲸是地球上体型最大的生物。The blue whale is the largest living thing on the planet.生命体通过某种生物过程聚集矿物质。The living organisms somehow concentrated the minerals b...
Assaying goes: not less Sichuan ( In fact, the veteran also dangerous ).俗话说: 少不入川 ( 其实老了也危险 ).Method: the description, physical chemistry identity, assaying and micro - identity was used test.方法: 采用性状 、 理化鉴别 、 含量测定、显微鉴别等...