单词：dallis grasses
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DNA Tests Prove Worms in Sardine Cans are Kosher Let's say one day you're opening up a can of sardines and you come across a worm. It is not as unusual as you might think. Unfortunately, recently, it hasn't been unusual at all, noted Rabbi Chaim Loik
VOA标准英语2012年(三月)
DAVID GREENE, HOST: A resolution on breastfeeding was expected to easily be approved by government delegates who had gathered in Geneva for the United Nations-affiliated World Health Assembly. The resolution said mother's milk is the healthiest for c
2018年NPR美国国家公共电台7月
We are now living in a common home. That is the earth. She provides us with enough food, enough water and enough living room. So we must do everything to protect her. There are lots of big or small, red or green, beautiful gardens around us .But ther
英语作文
正在准备雅思考试的你是不是也有同样的问题，听力s3s4太难了!没错，因为听力的四个section的难度是逐级上升的，最后的两个部分也是同学们最头疼的，除了场景是难度比较大的学术类以外，
雅思英语
Yet there is surprisingly little agreement on how many phyla there are or ought to be. 然而，令人吃惊的是，在关于有多少门或诙有多少门的问题上，人们的看法大相径庭。 Most biologists fix the total at about thirty, b
万物简史
D You are what you eat. This saying has provided scientists with clues(线索)about the diet of hominids- our early relatives of 3 million years ago. Studying carbon atoms(碳原子)locked up in tooth
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