The first steam engine was devised by Thomas Newcomer at the end of the 17th century, and the Scottish inventor ________ modified and improved the design in 1765.
A.Abraham Darby B.James Watt C.John Kay D.Richard Arkwright正确答案B
The first steam engine was devised by Thomas Newcomer at the end of the 17th century, and the Scottish inventor ________ modified and improved the design in 1765.
A.Abraham Darby B.James Watt C.John Kay D.Richard Arkwright正确答案B
