2. 外语
  3. The passage is mainly about______. What can be inferred about the defense mechanisms of the sea cucumber?

The passage is mainly about______. What can be inferred about the defense mechanisms of the sea cucumber?

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问题 The passage is mainly about______.
What can be inferred about the defense mechanisms of the sea cucumber?
选项 A、They are very sensitive to surrounding stimuli.
B、They are similar to those of most sea creatures.
C、They are completely defenseless when attacked.
D、They are intelligent sea creatures.
答案A
解析 推理依据是文章结尾处的最后两句话。大意是：当受到攻击或被触及时，海参便会排出自己的内脏，然后再生。当邻近水域的水温过高或被严重污染时，海参同样会这样做。因此可以推断海参对周围的刺激反应极其敏感。
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