2. 职称英语
  3. Although scientists have______long the human appendix as______organ, there is a

Although scientists have______long the human appendix as______organ, there is a

游客2024-01-11  43
问题 Although scientists have______long the human appendix as______organ, there is a growing body of evidence indicating that the appendix does in fact have a significant function as a part of the body’s immune system.
选项 A、overestimated … a minor
B、discounted … a vestigial
C、valued … a major
D、ignored … a pivotal
E、studied … an inaccessible
答案 B
解析
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