4-差向脱水四环素

WASHINGTON Robots are becoming commonplace in many areas of society -- from manufacturing to medicine to our homes. But now, a robot has taken to the stage, in a British play called Spillikin, where a humanoid robot plays the male companion of a woma

发表于:2018-12-08 / 阅读(38) / 评论(0) 分类 VOA标准英语2017年(三月)

Groups Urge Laos to Rethink Huge Hydropower Projects Environmental groups and researchers are calling on the government of Laos to carry out an open investigation of the deadly collapse of a large dam. On July 23, part of the Xe-Pian-Xe Namnoy hydrop

发表于:2019-01-03 / 阅读(93) / 评论(0) 分类 2018年VOA慢速英语(八)月

四环素类 美他环素 Methacycline 飞梭霉素, 甲烯土霉素, 甲烯环素 米诺环素 Minocycline 康尼, 二甲胺四环素, 美满霉素, 二甲胺四环素,Vectrin, Minomax, Minocin, Ul

发表于:2019-01-03 / 阅读(49) / 评论(0) 分类 医务英语

In 1980, a scientist looking at bone fragments under an ultraviolet microscope noticed the bones were glowing greena hallmark of the antibiotic tetracycline. The drug latches onto calcium and gets deposited in bone. Nothing unusual. Except these bone

发表于:2019-01-08 / 阅读(46) / 评论(0) 分类 Scientific American(九)月

Iranian President Mahmoud Ahmadinejad addressed thousands of flag-waving supporters at a victory rally to celebrate being officially proclaimed winner of Friday's election, despite widespread accusations of fraud. Supporters of Iranian President Mah

发表于:2019-01-13 / 阅读(59) / 评论(0) 分类 VOA标准英语2009年(六月)

unit 502 学习打牌 dialogue 英语情景对话 A:Do you play cards? A:你打扑克吗? B:Of course and very well. B:当然会了,而且打得很好。 A:What's the English for Hongtao, Heitao, Meihua and Fangpian? A:红桃、黑桃、梅花、方

发表于:2019-01-21 / 阅读(191) / 评论(0) 分类 高频英语口语对话