(所给词的适当形式填空) 相关知识点: 试题来源: 解析 【答案】conductor 【解析】【分析】【详解】考查名词。句意:众所周知,金属是良导体。分析句子成分可知,“a good ___ (conduct)”作表语,根据其前的冠词a可知,应用单数形式,意为“导体”,故填conductor。反馈 收藏 ...
题目Metal is a good (导体) electricity.相关知识点: 试题来源: 解析 conductor 本题考查名词用法。①句意分析:“金属是很好的导电体”。②词性判断:good是形容词,修饰名词。③解题要点:conductor名词,可以表示导体。因此本题答案为conductor。反馈 收藏
The thermal and electrical conductivity of all metals is high compared to nonmetallic substances, such as plastics and ceramics, rocks, and solid salts.The aluminum foil, steel wool, paper clip, copper, charcoal stick, and graphite pencil were good conductors and displayed metallic properties. The...
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
百度试题 结果1 题目【题目】a good conductor, the metal is madeinto cables.It isT o beBeBeing 相关知识点: 试题来源: 解析 【解析】D 反馈 收藏
A. Light in weight B. Having been light in weight C. Be light in weight D. Being light in weight 相关知识点: 试题来源: 解析 D 正确答案:D 解析:本题测试的是语法知识。light在表示“轻”这一含义时是形容词,所以“light in weight”不能作主语;be是动词原形,因此“be light in weight”不能...
The process in order to be covered with a metal mass is a good conductor of heat, a surface made of iron or an alloy of ironSTRASSER ALBERT
百度试题 结果1 题目2. Such a metal is the bestmaterial to be usedelectric wire.A. forB. toC. atD. in 相关知识点: 试题来源: 解析 2.A解析:be used for sth.意为“用于,被用来做某事”,是固定搭配,故选A。 反馈 收藏
Metals are highly conductive, so it’s essential to protect your PCB from accidental conductivity. While it is a good conductor of heat, it also conducts electricity. In some situations, metal substrates are necessary because they can handle powerful electrical currents. However, this doesn’t mea...
When ___C__,metal will expand. A heating B being heated C heated D is heated 相关知识点: 试题来源: 解析 金属加热时会膨胀.heat,是加热的意思.heated 过去分词表被动,金属是被加热的,所以用heated.(如果选B,与句子开头的When,冲突.如果没有when ,可选B,但C就错误了.) ...