2. 外语
  3. A mussel grips a hard surface very firmly to ______. Scientists are not thinking of using mussels to produce the super glue mai

A mussel grips a hard surface very firmly to ______. Scientists are not thinking of using mussels to produce the super glue mai

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问题 A mussel grips a hard surface very firmly to ______.
Scientists are not thinking of using mussels to produce the super glue mainly because of ______.
选项 A、the possible mass-production of the super glue
B、their concern about the cost of collecting mussels
C、their concern about the extinction of the species
D、the world’s limited demand for the super glue
答案C
解析 由题干Scientists...thinking of using mussels定位到原文最后一段前两句However, scientists are not thinking of using the mussels themselves to produce this super glue. It would take some 10 000 shellfish to make just one gram of glue．推断题。由上可知：不过，科学家并没有打算利用贻贝本身来制作这种强力胶水，因为生产1克胶水就需要大约10 000个甲壳水生动物。故C)正确。[避错]A)“强力胶水大规模生产的可能性”、B)“考虑到收集贻贝所花费的费用”和D)“对强力胶需求的有限性”均与原文不符。
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