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[Sentence Correction]
试题详情
题目：
Rock samples taken from the remains of an asteroid about twice the size of the 6-mile-wide asteroid that eradicated the dinosaurs has been dated to be 3.47 billion years old and thus is evidence of the earliest known asteroid impact on Earth.
选项:
A、has been dated to be 3.47 billion years old and thus is
B、has been dated at 3.47 billion years old and thus
C、have been dated to be 3.47 billion years old and thus are
D、have been dated as being 3.47 billion years old and thus
E、have been dated at 3.47 billion years old and thus are
答案:
E
提问：
错选了C
解答：
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阅读676
提问：
错选了C
解答：
点赞0
阅读677
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