下列选项不是能量的单位( ) A: 焦耳 Joule B: 瓦特 Watt C: 瓦特秒 Watt-second D: 千瓦时 kilowatt-hou
下列选项不是能量的单位( ) A: 焦耳 Joule B: 瓦特 Watt C: 瓦特秒 Watt-second D: 千瓦时 kilowatt-hou
watt
watt
James Watt was born in ________.
James Watt was born in ________.
Watt A: 瓦特 B: 伏特
Watt A: 瓦特 B: 伏特
James Watt created a Steam Engine in 1769.
James Watt created a Steam Engine in 1769.
James Watt invented the Spinning Jenny (珍妮纺纱机) 1785.
James Watt invented the Spinning Jenny (珍妮纺纱机) 1785.
The first steam engine was devised by ______ at the end of the 17th century, and the Scottish inventor James Watt modified and improved the design. A: Robert Bakewell B: Thomas Newcomer C: James Watt D: Thomas Coke
The first steam engine was devised by ______ at the end of the 17th century, and the Scottish inventor James Watt modified and improved the design. A: Robert Bakewell B: Thomas Newcomer C: James Watt D: Thomas Coke
The unit of weight is the: A: Kilogram B: Newton C: Watt D: Kilowatt
The unit of weight is the: A: Kilogram B: Newton C: Watt D: Kilowatt
1796年James Watt用飞球调节器控制蒸汽机的( )。
1796年James Watt用飞球调节器控制蒸汽机的( )。
—Thereisawrongwordinline_________.—Where?—Inthe________line. A: two;two B: two;second C: second;two D: second;second
—Thereisawrongwordinline_________.—Where?—Inthe________line. A: two;two B: two;second C: second;two D: second;second