问题 问答题 论述题

使轨道区段的道渣漏阻为0的原因有哪些?

答案

参考答案:使轨道区段的道渣漏阻降为0Ω的主要原因有:1.粘结式轨距杆绝缘破损;2.老式轨距杆的两端绝缘破损;3.老式轨距杆一爪与过轨引线相碰;4.老式轨距杆两爪与安装装置的长基础角钢相碰;5.轨道电路送.受电端的两根引接线余量处卡钉脱落,两引线相碰;6.过轨引接线在轨底处因卡钉脱落而与轨底相碰;7.过轨引接线在轨底与防爬器相碰造成短路;8.基础角钢两侧角形铁的绝缘同时破损,长基础角钢将两轨短路。

单项选择题
单项选择题

After winning a big game, athletes are often asked how they feel. Usually athletes say how (1) it is to win this big game. On the contrary, the fact is that losing a big game, or in my case, all the games, can be even harder.
From the spectators’ point of view, last year’s basketball (2) for my high school team was nothing (3) of an embarrassment. And (4) 0 and 20 is certainly nothing to be proud of, that season had a bigger impact on me than any other. As a team captain, I knew it probably wouldn’t be the (5) year, but did I ever think we would lose every game Of course not. Since six of our top players had graduated, it was clear that we were a (n) (6) team who would struggle. The struggle began earlier than expected, (7) , as our team center was suspended (禁赛) for the season, and two key members decided to (8) for some reason. At this point, dropping out probably passed through every player’s mind, but in the end, we all stuck if out, (9) to work still harder.
Then there came a time when even our (10) and given up on us. Personally, I felt like it was (11) worthwhile giving my all. I thought, if even the coach doesn’t believe in us, why should I But just as my hope began to (12) , a teammate called a meeting. He said," Nobody thinks we are going to win, but, as teammates and friends, we (13) it to each other to go all out every game. "
It was that moment that (14) me how to be a leader. It hit me that I certainly didn’t (15) the role. As a leader you can never quit (16) the team who looks up to you. It is one (17) to be named captain, feel great and go through the motions, but it is quite another to be a real captain and make sure everyone realizes their full (18) all the time.
I am sure it is great to go through without losing and bringing home awards. But in all honesty, I (19) the fact that my team lost every game last year. It may not help me to become a better basketball player, but it already has made me a better leader, and (20)

A.as
B.while
C.since
D.now that