当发现接触网导线断落时,要远离该处()m以外,将该处加以防护,并立即通知有关部门处理。
A.1
B.2
C.5
D.10
参考答案:D
Turkey opened the world's first trans-continental underwater rail tunnel._Asia and Europe on 29 October, 2013,_closer the day when it will be possible to travel from London to Beijing via Istanbul by train.
A.connected; brought
B.connected; bringing
C.linking; brought
D.linking; bringing
四生丸1功效与作用