A. Graphite B. Silicon C. Phosphorus D. Sulfur 相关知识点: 试题来源: 解析 A。题目中描述的元素是非金属且是良好的电导体。硅是半导体不是良好导体。磷和硫都是非金属但不是电导体。而石墨是非金属且是良好的电导体。反馈 收藏
A. it is clear B. it is liquid C. it can carry electric current easily D. it is cold 相关知识点: 试题来源: 解析 C。中文解析:水是电的良导体是因为它能很容易地传导电流。A 选项“它是清澈的”,B 选项“它是液体”,D 选项“它是冷的”都与水是电的良导体的原因无关。反馈...
Which of the following materials is a good conductor of electricity? A. glass B. rubber C. copper D. plastic 相关知识点: 试题来源: 解析 C。铜是良好的电导体。选项 A 玻璃、选项 B 橡胶和选项 D 塑料都是绝缘体。本题涉及物理知识点是导体和绝缘体,英语知识点是材料名称的表达。反馈 收藏 ...
Which substance is a good conductor of electricity? A. Glass B. Wood C. Metal D. Plastic 相关知识点: 试题来源: 解析 C。本题考查物质的导电性。Glass(玻璃)、Wood(木头)、Plastic(塑料)都是绝缘体,不导电;Metal(金属)是良好的导体。反馈 收藏 ...
百度试题 结果1 题目The element that is a good conductor of electricity is ___. A. oxygen B. sulfur C. copper D. nitrogen 相关知识点: 试题来源: 解析 C。铜是一种良好的电导体。氧气、硫和氮气通常不是良好的电导体。反馈 收藏
Copper is a good conductor of electricity. Which of the following is not a good conductor? A. Silver B. Rubber C. Gold D. Aluminum 相关知识点: 试题来源: 解析 B。解析:在自然科学中,橡胶(rubber)是绝缘体,不是电的良导体。而银(silver)、金(gold)和铝(aluminum)都是良好的电导体。从英语...
题目The element that is a good conductor of electricity is ___. A. oxygen B. sodium C. phosphorus D. sulfur 相关知识点: 试题来源: 解析 B。钠是一种金属元素,金属通常是良好的导电体。氧、磷、硫都不是良好的导电体。反馈 收藏
Which of the following substances is a good conductor of electricity in its aqueous solution? A. Sugar B. Ethanol C. Sodium chloride D. Oil 相关知识点: 试题来源: 解析 C。解析:在化学里,氯化钠(sodium chloride)是电解质,其水溶液能导电。而糖(sugar)和乙醇(ethanol)是非电解质,它们的水溶液不...
1) Copper is a good conductor of electricity. 铜是电的良导体。 2) Copper is a good conductor of heat. 铜是热的良导体。 3) copper is a good medium for conducting heat 铜是传热的良导体 4) Copper and aluminium are good conductors. ...
1Silver is the best conductor of electricity,copper it closely. A. followed B. to follow C. following D. being followed 2Silver is the best conductor of electricity,copper it closely. A. followed B. to follow C. following D. being followed 3Silver is the best conductor of electricity...