2Wha is gunpowder(火药) made of?A. Parsley(欧芹), sage(鼠尾草),rosemary(迷迭香), and thyme(百里香)B. Hydrogen and oxygen.C. Charcoa,sulfur(硫磺), and potassium nitrate(硝酸钾).D. Silver gold, and bronze. 3What is gunpowder(火药) made of?A. Parsley(欧芹), sage(鼠尾草),rosemary(...
()49. What is gunpowder (火 ) made of? A. Parsley (欧芹), sage (鼠尾草), rosemary (迷迭香), and thyme(百里香). B. Hydrogen and oxygen. C. Charcoal, sulfur (硫磺), and potassium nitrate (硝酸钾). D. Silver, gold, and bronze. 相关知识点: 试题来源: 解析 C优质解答 反馈 ...
It was one of the greatest inventions.It is said that a Chinese man wrote about how to make it.At first,it was used for making fireworks.At the end of the Tang Dynasty,people began to use it in wars.The method of making it was brought to the Arab world and Europe in the 13th and...
Along with silk and paper,gunpowder is another invention by Chinese and the Silk Road helped it spread to the West.The dating of gunpowder is as early as 850 AD.The Chinese used gunpowder to make fireworks and for signal flares(信号弹).Gunpowder was also thought to have been used in medic...
Gunpowder is an explosive substance which is used to make fireworks or cause explosions. gunpowder的解释 gunpowder 单语例句gunpowder是什么意思 1. Cai will work with local volunteers to produce a number of new gunpowder drawings for the exhibition to showcase his approach to contemporary art. ...
The Four Great Inventions of China① Papermaking② Gunpowder Papermaking has traditionally been In Chinese, gunpowder is called traced (追溯) to Chin a about AD 105,huoyao, meaning flaming medicine.when Cai Lun created a sheet of paper Fireworks were invented in ancient China using mulberry and...
1I.阅读理解Along with silk and paper, gunpowder is another inven-tion by Chinese and the Silk Road helped it spread to theWest. The dating of gunpowder is as early as 850 AD. TheChinese used gunpowder to make fireworks and for signalflares. Gunpowder was also thought to have been used ...
Gunpowder, any of several low-explosive mixtures used as propelling charges in guns and as blasting agents. The first such explosive was black powder—a mixture of saltpeter (potassium nitrate), sulfur, and charcoal—which is thought to have originated i
Along with silk and paper, gunpowder is another inventionby Chinese and the Silk Road helped t spread to the West Thedating of gunpowder is as early as 850 AD. The Chinese usedgunpowder to make fireworks and for signal flares. Gunpowderwas also thought to have been used in medicine and in...