()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 ...
gunpowder, any of several low-explosive mixtures used as propelling charges in guns and as blasting agents in mining. The first such explosive was black powder,
1990s Dupont family controls wealth 150,000,000,000 US dollars, had 250 big rich and powerful people, 50 super big rich and powerful people.Its family founder is Iraq Lei Nei? Dupont, depends on the manufacture gunpowder to get rich, afterwards because of a gunpowder large explosion, the fa...
The four great inventions are invitations from ancient China.They areCompass ,gunpowder paper making and printing .They are historically significant and considered symbols of ancient China’s advanced science and technology. What is paper making? paper is a “wood”like material primarily used for wr...
2)能够用英语描述及询问物品的制作材料What is it made of/from? 3)正确理解被动语态的用法及句子结构。 2.教学难点: 理解被动语态的用法及句子结构。 三、教学过程 Ⅰ. Lead in 1.As students questions about the four great inventions. (gunpowder,printing,compass,paper-making) T:Who invented paper firs...
Try it now Create an account Ask a question Our experts can answer your tough homework and study questions. Ask a question Search AnswersLearn more about this topic: History of Gunpowder and its Effects on the New World from Chapter 12 / Lesson 2 100K Gunpowder emerged from China ...
a跳更高 别靠腰 要靠心脏的火药 Jumps high do not depend on the waist to have to depend on the heart the gunpowder[translate] a如果有任何需要帮助的地方,请随时与我联系 あらゆる持っていたら必要私と関連しなさいように助けの場所を、必要としなさい[translate] ...
Every country has a history of wartime inventions. China’s just happens to be thousands of years old and is the foundation for many modern-day fighting machines. China Invented Gunpowder Considered one of the “four great inventions of ancient China”, gunpowder first made an appearance in Chin...
The “bullet” is the component of a cartridge that is ultimately propelled through the air to make contact with the target. It is important to distinguish that bullets are not the entire cartridge. A cartridge consists of a bullet, a cartridge case or casing, gunpowder, and a primer to ig...
在《士兵突击》这个没有坏人的世界和极端___的情景中，人与人之间的冲突却那么热烈、那么戏剧性，它把观众卷入其中并___他们沉睡的正义感、神圣性，通过理想化的存在体验催生道德的价值观念。 依次填入划横线部分最恰当的一项是( )。