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This is the VOA Special English Development Report. An estimated one-third of all people are infected with tuberculosis. Most have latent, or inactive, cases. They do not suffer coughing, increased body temperature or other signs of active TB. A tub
X-Ray Technology Helps Recover Lost 19th-Century Images The worlds very first photographs were taken in the 1830s. Scientists now say they have found a way to recover lost images made from the very first photographic process. The new method uses X-ra
ichthyosis 鱼鳞病 impetigo 脓疱疮 isomorphic reaction 同形反应 keratin 角蛋白 keratinocyte 角质形成细胞 keatolytics 角质松解剂 keratoplastics 角化促成剂 lamella lucida 透明
Laspeyres index formula 拉斯佩尔指数公式 last in, first out method [LIFO method] 后进先出计算法 last recorded price 最后成交价 last trading price 最后成交价 late adjustment 收市
1. alias /ˈeɪliəs/ 1. n. 化名;别名 2. adv. 又名 Inspector Javelin discovered the David Smith was not the mayor's real name but an alias for John Campbell, the ex-convict. 调查员贾夫林发现,戴维史密斯不是市长的真名,而