2. 职称英语
  3. Complete the notes below.Choose NO MORE THAN ONE WORD AND/OR A NUMBER from the

Complete the notes below.Choose NO MORE THAN ONE WORD AND/OR A NUMBER from the

游客2025-02-15  18
问题 Complete the notes below.
Choose NO MORE THAN ONE WORD AND/OR A NUMBER from the passage for each answer.
Write your answers in boxes 19-21 on your answer sheet.
Problems with taxonomy
- Only 【R19】______ species have been classified so far.
- Difficult to distinguish between species of certain creatures, for example【R20】______
- Possibility of a large number of species of【R21】______ dying out soon. [br] 【R19】
选项
答案 1.7 million
解析
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