2. 外语
  3. The passage is mainly about______. According to the passage, the shape of sea cucumber is imp6rtant because _______.

The passage is mainly about______. According to the passage, the shape of sea cucumber is imp6rtant because _______.

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问题 The passage is mainly about______.
According to the passage, the shape of sea cucumber is imp6rtant because _______.
选项 A、it helps them to digest their food
B、it helps them to protect themselves from danger
C、it makes it easier for them to move through the mud
D、it makes them attractive to fish
答案B
解析 本题问海参的形状有何用处。见第三段最后一句“…this shape,…enables them to squeeze into narrow cracks where they are safe from predators and ocean currents”。
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