2. 职称英语
  3. The first steam engine was devised by Thomas Newcomen at the end of the 17th cen

The first steam engine was devised by Thomas Newcomen at the end of the 17th cen

游客2024-08-06  19
问题 The first steam engine was devised by Thomas Newcomen at the end of the 17th century, and the Scottish inventor______modified and improved the design in 1765.
选项 A、Abraham Darby
B、James Watt
C、John Kay
D、Richard Arkwright
答案 B
解析 世界上第一台蒸汽机于1712年由英国人汤姆斯·纽科门(Thomas Newcomen)发明，后来詹姆斯·瓦特(James Watt)对其进行了改良，使蒸汽机的效率提高到原来纽科门蒸汽机的3倍多。
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