单词：selection replacement technique
单词：selection replacement technique 相关文章
The Telegraph: British scientists have built a complete and functional organ in a living animal for the first time. British scientists have produced the first working organ by reprogramming cells in a step towards the 'Holy Grail' of being able to gr
双语趣听精彩世界
If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning
2017年VOA慢速英语(六)月
Technique May Eliminate Drill-and-Fill Dental Care For over a hundred years, dentists have been repairing cavities by removing the decayed tooth tissue with a drill and filling the hole with metal or plastic material. Depending on the cavitys depth,
VOA标准英语2015年(八月)
So this is the complexity of the world that surrounds us. 所以这就是我们所处环境的复杂性。 This perhaps is why we find the God complex so tempting. 这也许正是为什么我们发现万能神力这么有吸引力的原因。 We tend
TED演讲教育篇
By Carol Pearson Washington 08 January 2008 New technology makes surgery safer, shortens recovery time and leaves no scars. Both physicians and patients are pleased with the results. VOA's Carol Pearson has more. Maria Viruet recently had her gallbla
VOA标准英语2008年（一月）
Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver handle the situation, we wondered. Straight-faced,
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