Which metal is known for its excellent heat conductivity and is sometimes used in furniture with heating elements? A. Copper B. Aluminium C. Steel D. Platinum 相关知识点: 试题来源: 解析 A。铜(Copper)具有出色的导热性能,有时会用于带有加热元件的家具中。铝(Aluminium)导热性不如铜。钢(Steel...
Which metal is often used for making outdoor furniture because of its resistance to rust? A. Copper B. Iron C. Aluminium D. Stainless steel 相关知识点: 试题来源: 解析 D。本题考查金属材质的特性。不锈钢(Stainless steel)具有良好的防锈性能,常被用于户外家具。铜(Copper)价格较高且防锈能力一般。
In modern industry, the metal which is widely used in making electrical wires due to its excellent conductivity and is often obtained through mining and refining processes is _. A. Iron B. Copper C. Gold D. Aluminium 相关知识点:
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...
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 。
A. A metal ball getting smaller when heated. B. A metal rod remaining the same length when heated. C. A metal sheet becoming thinner when heated. D. A metal pipe getting longer when heated. 相关知识点: 试题来源: 解析 D。金属加热会膨胀,A 选项金属球加热变小错误;B 选项金属棒加热长度不...
解析 A。解析:题目问由金属制成且能用来切割东西的手工艺品。选项A“scissors”(剪刀),剪刀由金属制成且能切割东西,符合题意;选项B“metal keychain”(金属钥匙链),钥匙链主要用于挂钥匙,不能切割东西,不符合;选项C“metal bookmark”(金属书签),书签是用于标记书页的,不能切割东西,不符合题意。
METAL PARTITION WHICH IS USED FOR TEMPURA PANPROBLEM TO BE SOLVED: To fly crispy Tempuras.KOJIMA AKIKO小島 明子
It’s important to consider the cost and the supply (提供)of a metal. Also, when we choose a metal for a certain job, we examine its physical properties. Is it strong enough to be used as a support for a bridge? Can it he used in a telephone to conduct (传导) electncity? Is ...
Iron is a metal. It has the property of being magnetic. Which of the following is also a magnetic material? A. Wood B. Plastic C. Nickel D. Glass 相关知识点: 试题来源: 解析 C。解析:在自然科学中,镍(nickel)是一种磁性材料,和铁(iron)一样具有磁性。而木材(wood)、塑料(plastic)和玻璃(...