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This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? We live in a nice neighborhood. Of the galaxy, that is. The sun is about halfway toward the outer edge of the Milky Way. But the sun may have migrated vast distances t
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十一长假已过,对于参加考研的考生来说,距离考试的时间又临近了,已不足百天,到了真正关键的冲刺时刻。考研英语一直是大家备考的重点,词汇更是基础。 新东方在线网络课堂考研英语
TEHRAN, Oct. 18 (Xinhua) -- Iranian(伊朗) leaders on Monday urged for the quick formation of the Iraqi government, saying that will serve the interests of the Iraqi people and enable them to enjoy stability, security, unity and prosperity(繁荣
Circulatory Function of the Liver While the liver is technically part of the gastrointestinal system, it also plays an important role in blood circulation. The liver has been called the antechamber of the heart because it collects and processes all o