脱咖啡因的咖啡仍含一些刺激物和其他可能致癌的有害物质。Decaffeinated coffee still contains some stimulants and other nasties linked with cancer.对于大多数人来说,金钱仍是主要的刺激物.Money is still a major incentive to most people.助手们仔细观察细菌对这种刺激物会产生什么反应.The assistant...
比较不常见的浸蚀多聚物的化学浸蚀物有酸 、 碱.Less common reagents that attack polymers include acids, bases.简要介绍了磁性纳米颗粒 、 硅纳米 颗粒及阳离子多聚物颗粒等的研究进展.The magnetic nanoparticle, silica nanoparticle and poly - cation nanoparticle were introduced bri...
马克思回信给恩格斯说,他的赞誉对自己的鼓励很大.Marx wrote back to say that Engels'praise had greatly encouraged him.马克思和恩格斯科学地预言了资本主义的灭亡.Marx and Engels scientifically forecast the collapse of capitalism.恩格斯懂好几门外国语, 例如英语 、 法语和意大利语.Engels ...