2. 外语
  3. Some plants and animals develop superior characteristics so that they may In the first paragraph, the word "environments" could

Some plants and animals develop superior characteristics so that they may In the first paragraph, the word "environments" could

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问题 Some plants and animals develop superior characteristics so that they may
In the first paragraph, the word "environments" could best be replaced by
选项 A、contexts.
B、surroundings
C、neighbors".
D、enemies.
答案B
解析
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