The word "it" in line 3 refers to [br] Which of the following is NOT mentioned

游客2024-01-05  8

问题  The word "it" in line 3 refers to [br]  Which of the following is NOT mentioned in paragraph 1 as resulting from rapid ecological change?

选项 A、Temperature changes
B、Availability of food resources
C、Introduction of new species
D、Competition among species

答案 C

解析
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