电缆线路电缆通道部件状态量由（）组成。
A.电缆井环境
B.电缆管沟环境
C.防火阻燃
D.电缆线路保护区运行环境
参考答案：A, B, C, D
Ann likes to look at the books in the _____. [ ]
A. furniture
B. drugstore
C. bookstore
D. bank
