2. 外语
  3. Professor Thring’s mechanical coal miner ______. What particular advantage does Professor Thring’s coal miner have?

Professor Thring’s mechanical coal miner ______. What particular advantage does Professor Thring’s coal miner have?

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问题 Professor Thring’s mechanical coal miner ______.
What particular advantage does Professor Thring’s coal miner have?
选项 A、It does not have to go deep underground.
B、It can work in very narrow spaces.
C、It can work in the open air.
D、It is twice as strong as a human miner.
答案B
解析 文章没有明确给出答案，但我们通过阅读可以看出它的两个特点，即体积小，可用于较小的矿井，以及不需要井下作业。选项"…miners ride on"的错误在于并非这个仪器不需要到井下，而是人不需要到井下。"…operated at a distance"是显然不对的。答案选项与其中的一个特点相符。第一段提到了用现有的labour force(劳力)可以有两倍的产量，而不是"twice as strong as a human miner"。
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