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shi shuo xin yu
Author(s): 
Pages: 7
Year: Issue:  9
Journal: Reading for Senior Students

Abstract: <正>1再过20年,没准儿你会发现好多天文研究者,就是那天抬头看见日全食的小孩。——2009年7月22日,百年一遇的日全食引发了国人的观看热潮。北京天文馆馆长朱进表示,日全食之所
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