Ecologists argue that the benefits of treating sewage with disinfectants are doubtful.生态学家认为用消毒剂处理污水是否有益值得怀疑。Other substances used to prevent disease or infection include disinfectants and germicides.用来预防疾病或感染的其它物质有消毒剂和灭...
我已经记不得如何去写草书的大写字母Z。I can't remember how to write a capital Z in cursive.在植物学领域,这些最早的著作是本草书.The first of these in the field of botany were the herbals.他写草书.He write a running hand....
Enclid next lays down five postulates and five common notions.接着Enclid就列出五个公设和五个公理.The school building programme postulates an increase in educational investment.修建校舍的计画是在增加教育经费的前提下拟定的.These steps , known to microbiologi...
这个数目因人而异,叫做 “ 免税收入额 ”This amount varies from person to person and is called an'allowance '.总收入额中房屋契税的收入额和土地契税的收入额.The revenue collected from the housing contract tax and land contract tax against the total reve...