C谩ch 膽峄峜 k猫o ch芒u 脗u
参与互动将天然钻石作为“种子”置入真空室→泵入3000℃的甲烷和氢气→两种气体迅速分裂→从甲烷中分裂出的碳原子集合于“种子钻石”，模仿其晶体结构，以0.006毫米/小时的速度“生长”→几天后，1克拉的钻石就被“培育”出来啦！快来看英国科学家最新实验。
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卡西米表示，伊朗不会是第一个退出伊核协议的国家，但如果该协议不能使伊朗人民受益，那么德黑兰将作出必要决定。
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经济新闻精选：
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