单词：invigorating spleen for expelling intestinal parasites
单词：invigorating spleen for expelling intestinal parasites 相关文章
Invasive species can decrease biodiversity and drive resident species to the brink of extinction. But how do these interlopers fare so well in unfamiliar territory? One idea is that theyve escaped their enemies, for example, the parasites that keep t
Scientific American(四)月
Roman Toilets Offered No Clear Health Benefits 2000年前罗马人的卫生习惯 Around 2000 years ago, the Romans moved into Europe. They built public latrines, or toilets, with many seats and washing areas. And they built sewerage systems, brought
2016年VOA慢速英语(一)月
iPhone Becomes Low Cost Microscope The Apple iPhone can be used for lot of things making calls, playing games and sending pictures, video and text. Scientists say it also can be converted into a low-cost microscope to detect worm-related infections i
VOA标准英语2013年(三月)
And drenching: the administration of medicine through huge syringes rammed down the throat, to rid the sheep of intestinal parasites. For work with the sheep never, never ended; as one job finished it became time for another. They were mustered and g
荆棘鸟
Youve probably heard of people collecting stamps or arts or even antique cars, but what about parasites? In 1892, the American government established a National Parasite Collection to learn more about diseases affecting livestock. Twenty million spec
中英双语新闻
And not on love of the work or a desire to make a difference is a recipe for unhappiness 8 而不是因爱好或追求卓越所做出的职业选择 不过是日后苦恼的根源 八 Nobody likes to fail but failure is an essential part of life and
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