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fei de zui yuan de tan ce qi
Author(s): 
Pages: 35-36
Year: Issue:  3
Journal: Required Reading for Junior Middle School Students

Abstract: <正> 目前飞得最远的空间探测器是美国的“先驱者10号”,它是于1972年3月3日发射升空的,至今已在太空飞行整整30年了,现在仍朝着茫茫宇宙的深处飞去。
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