What instrument is made of metal? A. Recorder B. Kazoo C. Trumpet D. Harmonica 相关知识点: 试题来源: 解析 C。解析:A 选项 recorder 竖笛一般是塑料或木质;B 选项 kazoo 卡祖笛通常是塑料或金属与塑料结合;C 选项 trumpet 小号主要是金属制成;D 选项 harmonica 口琴主要是金属和塑料结合。本题考查对...
百度试题 结果1 题目What is the main material of a violin's body? A. Metal B. Wood C. Plastic D. Glass 相关知识点: 试题来源: 解析 B。解析:小提琴的琴身主要材料是木材。反馈 收藏
Carbon is a non-metal and therefore has covalent bonds. However, in this experiment, it exhibited metallic properties. Carbon in the form of graphite is the only non-metallic element that conducts electricity. As we all know,graphiteis composed of sheets of hexagons of carbon atoms joined by ...
Sintered metal is a material created by heating metal powder particles below their melting point, causing them to bond together and form a solid object with a desired shape, essentially "sintering" the powder into a solid piece through the application of heat and pressure; this process allows fo...
The most common magnetic metal is iron. It is the cheapest one with a price of $0.82 per ounce. Gold and Aluminum do not have magnetic properties, but you will notice that stainless steel can get attracted by magnets. In this article, we will also talk about other metals such as: ...
[1] Inthelate 1960s.[2] DJ[1] 【答案】In the late 1960s.【核心短语/词汇】heavy metal music:重金属音乐【翻译】重金属音乐什么时候出现的?【解析】题干意思是“重金属音乐什么时候出现的?”,根据文章第一段第一句“Heavy metal music appeared in the late 1960s.”(重金属音乐出现在20世纪60年代末...
This instrument is made of metal and you hit it with a stick to make a sound. What is it? A. cymbal B. tambourine C. bongo D. maracas 相关知识点: 试题来源: 解析 A。由金属制成且用棍子敲击发声的是 cymbal 钹;tambourine 是铃鼓;bongo 是邦戈鼓;maracas 是沙球。
To begin the spinning, the metal disk is centered between the male pattern (mounted on the headstock) and a wood follower mounted on the tailstock (a live center is desirable). Clamping pressure to hold the metal in position is applied by cranking the tailstock tightly against it. This press...
This suggests a connection between the Herzfeld/Mott views of the metal-insulator transition. The corresponding transition in a disordered system is also described; here the concept of a minimum metallic conductivity separating localized and itinerant electron states is reviewed. Finally, a section is ...
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