2. 外语
  3. In what case do bettas assume various colors? What does the word "otherwise" mean here in line 7?

In what case do bettas assume various colors? What does the word "otherwise" mean here in line 7?

admin2009-04-23  20
问题 In what case do bettas assume various colors?
What does the word "otherwise" mean here in line 7?
选项
答案If it (betta) does not have such a special organ.
解析
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大学英语六级

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