题目内容：
Copper as well as most metals _____ of electricity, but wood is a poor one.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：河北建筑工程学院-建筑学-大学英语1
- 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