2. 外语
  3. (Inventor) Elisha Graves Otis designed the first elevator (that it incorporated) an automatic brake, which in turn (led to) the

(Inventor) Elisha Graves Otis designed the first elevator (that it incorporated) an automatic brake, which in turn (led to) the

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问题 (Inventor) Elisha Graves Otis designed the first elevator (that it incorporated) an automatic brake, which in turn (led to) the (development) of the skyscraper.
选项 A、Inventor
B、that it incorporated
C、led to
D、development
答案B
解析
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