2. 外语
  3. The word "it" in line 3 refers to According to the passage, it is believed that the largest extinction of a species occurred

The word "it" in line 3 refers to According to the passage, it is believed that the largest extinction of a species occurred

admin2004-12-30  80
问题  The word "it" in line 3 refers to
  According to the passage, it is believed that the largest extinction of a species occurred
选项 A、26 million years ago
B、65 million years ago
C、225 million years ago
D、250 million years ago
答案C
解析
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