题目内容：
Copper as well as most metals _____ of electricity, but wood is a poor one.（单选）—5分A is a good conductor
B are good conductors
C is a good insulator
D are good insulators
参考答案：
选择题：Copper as well as most metals _____ of electricity
- 题目分类：河北民族师范学院-基础英语一
- 题目类型：选择题
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A is a good conductor
B are good conductors
C is a good insulator
D are good insulators