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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：
这里我根据前后主谓一致性排除AB，又因为后半句缺乏谓语排除D，还剩C和E不知道如何判断，于是选了C，想请问一下老师，这里E比C好在哪里？
解答：
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提问：
这里我根据前后主谓一致性排除AB，又因为后半句缺乏谓语排除D，还剩C和E不知道如何判断，于是选了C，想请问一下老师，这里E比C好在哪里？
解答：
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提问：
老师好，这道题我先用samples的复数形式排除了AB，CDE里面D的and后面没有谓语动词了，剩下CE，然后这两个选项只有dated to be和 dated at这个差别了，所以我不知道改选那个，麻烦老师解答，谢谢！
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