百度试题 结果1 题目 ___is a mixture of two or more elements in solid solution in which the major component is a metal. 相关知识点: 试题来源: 解析 An alloy 反馈 收藏
5. When he drank tea, he suddenly got a good idea and knew how ___ solve) the problem. 相关知识点: 试题来源: 解析 4. metals 5. to solve 解析: 第4题中,"metal"是可数名词,且由"different"修饰,表示多种金属,因此应用复数形式"metals"。 第5题中,"how to solve"构成疑问词 不定式结构,...
The metal is an example of a ___ material. A. natural B. artificial C. soft D. liquid 相关知识点: 试题来源: 解析 A。解析:金属是一种自然材料,选 natural。B 选项 artificial 人造的,金属不是人造材料;C 选项 soft 软的,与金属特性不符;D 选项 liquid 液体,金属是固体。反馈 收藏 ...
Today,our currency(货币) is a mixture of metal coins and paper money,but it wasn't always that way.Before metal coins and paper bills existed(存在),people used a lot of unusual things to buy what they needed.In one part of the world,for example,people used the sharks' teeth for money...
A ceramic powder, a metal powder, or a mixture is put in a dispersed state into a mold and cured to form moldings which is then released, and a part of mold is formed of degradable material which is degraded in releasing the moldings...
百度试题 题目A mixer is usually ___ of metal and plastic.? 相关知识点: 试题来源: 解析 made 反馈 收藏
a special metal and plastic. The metal is a combination of silicon (硅) and stainless steel. The metal is strong, so it can support the weight of the body. The plastic is a flexible material. It allows the joint to move easily. Medicines have been discovered that will prevent the body...
The main classifications of matter include the categories element and compound, either of which may also be called a substance (which is a less specific term), and mixture, of which there are also many sub-categories.Definition of a (Chemical) Mixture:...
【题目】An alloy is a metal made by mizing and melting two or more metals together. After the metals are mized, the alloy must be cooled slowly to avoid crystallization. Suppose a metallurgist heats a mixture of metals to a temperatureof 2,500 F and then removes the resulting alloy from...
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