采用架空接入的接户线，（）采用低压交联聚乙烯铜芯绝缘导线；接户线（）由变压器构架两侧顺线路的方向引出。
A.宜；不宜
B.应；不宜
C.应；宜
参考答案：B
When the rescue workers arrived, they were sad to see what _____ of the relics after the big fire. [ ]
A. was remained
B. remained
C. was made
D. made
点在投影图上的投影特征永远是（）。
A.点
B.线
C.面
D.线段
