2. 外语
  3. The word "it" in line 3 refers to Which of the following is NOT mentioned in paragraph 1 as resulting from rapid ecological ch

The word "it" in line 3 refers to Which of the following is NOT mentioned in paragraph 1 as resulting from rapid ecological ch

admin2004-12-30  89
问题  The word "it" in line 3 refers to
  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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