Scottish inventor（ ）modified and improved the design of steam engine and produced a very efficient one with rotary motion in 1765.
A、James Watt
B、John Kay
C、Richard Arkwright
D、Samuel Crompton
【正确答案】：A
【题目解析】：本题考查瓦特发明的蒸汽机。The first steam engine was devised by Thomas Newcomen at the end of the 17th century, and the Scottish inventor James Watt（1736-1819） modified and improved the design in 1765 and produced a very efficient steam engine with rotary motion that could be applied to textile and other machinery.苏格兰发明家詹姆斯▪瓦特与1765年调整并改良了汤玛斯▪纽科门的蒸汽机设计方案，发明了高效的旋转式菜汽机。
