【题目】2. Copper is a transition metal.(a)Describe the bonding in copper andexplain why copper is usuallymanufactured as electric wire.(b) Lit two characteritics of transiion metals.(c)Identify the nature of bonding between theligand and the transition metal ion in thecomplex [Cu(NH3)4]...
Metal is a common material in engineering. Which of the following is not a metal? A. iron B. aluminum C. glass D. copper 相关知识点: 试题来源: 解析 C。本题考查材料科学中金属的概念。铁(iron)、铝(aluminum)和铜(copper)都是常见的金属。而玻璃(glass)是一种非金属材料,主要由硅酸盐等组成...
结果1 题目 ⑨Copper is an important conducive metal, both because of its highconductvity and be-cause of its abundance and low cost.铜是一种重要导体,因为它的导电率高,而且资源丰富,价格又低。 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
百度试题 结果1 题目Copper is a kind of _. A. stone B. wood C. marble D. metal 相关知识点: 试题来源: 解析 D 反馈 收藏
百度试题 结果1 题目Copper is a kind of(a)stone(b)marble(c)wood(d)metal 相关知识点: 试题来源: 解析 d 反馈 收藏
Which of the following elements is a metal? A. carbon B. sulfur C. copper D. phosphorus 相关知识点: 试题来源: 解析 C。金属元素是铜。选项 A 是碳,是非金属元素;选项 B 是硫,是非金属元素;选项 D 是磷,是非金属元素。所以答案是 C 。
百度试题 结果1 题目单项选择 Copper is a kind of ___. stone, marble, wood, metal相关知识点: 试题来源: 解析 metal 反馈 收藏
铜属于重金属。 A、Copper belongs to the heavy metals. B、Copper is grouped to be a heavy metal. C、Copper is a heavy metal.
amincrystal mincrystal[translate] aPolygonum Cuspidatum Extract 蓼属植物Cuspidatum萃取物[translate] aCopper is also a widely used metal industrially (Purnima and Vijay 1991). 铜工业上也是一种用途广泛的金属 (Purnima和Vijay 1991年)。[translate]
解析 B。解析:澳大利亚的采矿业与多种金属有关,但黄金(gold)开采在澳大利亚非常著名。A选项铜(copper)虽然也是金属矿产,但澳大利亚并非以铜开采最为出名。C选项锡(tin)不是澳大利亚主要的与采矿业紧密相关的金属。D选项锌(zinc)同样不是澳大利亚采矿业最具代表性的金属。