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Which of the following is NOT mentioned by the author as a consequence of new technological developments? It can be inferred fr
Which of the following is NOT mentioned by the author as a consequence of new technological developments? It can be inferred fr
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2009-05-24
61
问题
Which of the following is NOT mentioned by the author as a consequence of new technological developments?
It can be inferred from the passage that by 1870 ______.
选项
A、the steam engine had been invented
B、a national commission on agriculture had been established
C、the U.S. horse population was about 10 million
D、technology began to be more economical
答案
A
解析
根据第二段开始部分,1870年时马和骡子为美国农场的主要劳动力,尽管那时已出现蒸汽机。其他选项的信息有误或没有在短文中涉及。
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本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
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