单词：hydrazonaphthalene
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Long Before Burning Man, Zozobra Brought Fire And Redemption To The Desert play pause stop mute unmute max volume 00:0005:40repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update
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This is Scientific Americans 60-Second Science. Im John Matson, Got a minute? Imagine a pinball machine on multi-ball modeonly the balls are the size of planets. The early solar system was such a rough-and-tumble place. That chaotic environment produ
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【内容简介】 斯蒂夫罗杰斯是出生于经济大萧条时期的一个家境贫寒的脆弱青年。因为看到纳粹在欧洲肆虐侵略的新闻而想入伍参军。但因为体弱多病被拒绝了。无意中得知了斯蒂夫罗杰斯真
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A fridge that talks to your washing machine and a television that instructs your dishwasher. It's all possible at CeBIT, the world's top high-tech fair。 But the question is: what's the point? Well, for example, you could be sitting on your sofa in
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A fridge that talks to your washing machine and a television that instructs your dishwasher. It's all possible at CeBIT, the world's top high-tech fair. 冰箱和洗衣机交谈、电视向洗碗机下令在世界顶级高科技展会德国汉诺威通
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阅读理解除了要求正确理解事实细节的能力外，还经常需要考生根据一定上下文对某些词汇的意义 所读材料理解文章隐含的意义和深层次的含义、归纳文章主题思想、通过概括得出结论、综合
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