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  3. The word "it" in line 3 refers to [br] What does the author say in paragraph 1

The word "it" in line 3 refers to [br] What does the author say in paragraph 1

游客2024-01-05  61
问题  The word "it" in line 3 refers to [br]  What does the author say in paragraph 1 regarding most species in Earth’s history
选项 A、They have remained basically unchanged from their original forms.
B、They have been able to adapt to ecological changes.
C、They have caused rapid change in the environment.
D、They are no longer in existence.
答案 D
解析
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