二级转化器的温度通常较一级要低()左右。
A.50℃
B.100℃
C.150℃
D.200℃
参考答案:B
The police asked the little boy _____. [ ]
A. where did he live
B. where does he live
C. where he lived
D. where he did live
岔线是指在区间或站内接轨,通向路内外单位的专用线路。()(C、3、Y)[05-00-01-02][020205]