Babbage wished to build a mechanical engine because ______. Researchers built the calculating difference engine according to Ba

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问题 Babbage wished to build a mechanical engine because ______.
Researchers built the calculating difference engine according to Babbage’s design in order to show that ______.

选项 A、Babbage’s intelligence was far ahead of his fellow-men
B、Babbage’s idea was reasonable both theoretically and practically
C、Babbage’s dream could only be realized in the 20th century
D、Babbage’s design was actually imperfect

答案B

解析 这是一道细节题。依据第三段首句可知答案。
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