避难线
参考答案:
在陡长的下陂道上,为防止失去控制的列车发生冲突或颠覆,根据线路坡度及地形情况计算确定在区间或站内设置的陡上坡尽头线或回转线,称为避难线。
We should encourage the children affected by the earthquake _____ happy to face the life in future. [ ]
A. being
B. are
C. to be
D. were
大面铺贴SBS改性沥青防水卷材,要根据火焰温度掌握好烘烤距离,一般以______cm为宜。
A.10~20
B.20~30
C.30~40
D.40~50