百度试题 结果1 题目Graphite(石墨) is a highly efficient ___ (conduct) of electricity.相关知识点: 试题来源: 解析 conductor 反馈 收藏
百度试题 结果1 题目(1)Graphite(石墨) is a highly efficient conductor(conduct) of electricity. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Graphite is insoluble in water. It has a high melting point and isa good conductor of electricity, which makes it a suitable material for the electrodes needed in electrolysis . Each carbon atom is bonded into its layer with three strong covalent bonds. ...
百度试题 结果1 题目 The earth is a conductor of electricity, and as such it may form part of an electrical circuit.( ) 相关知识点: 试题来源: 解析 正确 反馈 收藏
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...
Electricity can flow through wires. What material is a good conductor of electricity? A. Wood B. Rubber C. Metal D. Paper 相关知识点: 试题来源: 解析 C。解析:金属是良好的导电材料。A 选项木头、B 选项橡胶、D 选项纸都是绝缘体,不导电。
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 ...
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...
Silver is the best conductor of electricity, copper( )closely. 问题1选项 A. followed B. follows C. following D. to follow 相关知识点: 试题来源: 解析 [答案]C [解析]考查非谓语动词。一般情况下,分词作状语时,应与句子的主语存在一定的逻辑关系(主谓或动宾关系),否则分词就须有自己的主语或逻辑宾...