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  3. PASSAGE THREE What did the French and Argentine astronomers study?

PASSAGE THREE What did the French and Argentine astronomers study?

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问题 PASSAGE THREE
What did the French and Argentine astronomers study?
选项
答案A stellar black hole in the Milky Way．
解析 根据题目中的French and Argentine astronomers定位到第14段。该段提到，法国和阿根廷的天文学家发现一个星球黑洞正以25万英里的时速穿越银河系，而他们研究的正是这个星球黑洞，故答案为A stellarblack hole in the Milky Way。
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