[单选题]列车跳停命令是由 下发的。
A.ATS 子系统
B.轨旁子系统
C.ATO 子系统
D.网络通信子系统

[填空题]It _________________(是很容易证明的) that nothing is more precious than time.

[单项选择]Questions 1 - 5 are based on the following passage: Do you have bright ideas Ideas for inventions that change society or, at least, make life easier for somebody Perhaps we all do sometimes, but we don’t often make the idea as reality. Recently, in Britain, there was a competition called British Designers for Tomorrow. The competition encouraged young people to carry out their bright ideas. There were two groups in the contest: Group One was for schoolchildren under 16; Group Two was for schoolchildren over 16. And there were eleven prize-winners altogether. Neil Hunt, one of the prize-winners, was called ‘Sunshine Superman’ by one newspaper writing about his design. It’s important when people study the weather to be able to record sunshine accurately. We need to know how many hours of sunshine we have and how strong it is. Most sunshine recorders only record direct sunlight. Neil’s is more accurate and this is very important for research into way of using solar power. With h
A. Neil Hunt.
B. A driver
C. Simon West
D. A teacher

[单选题]一张工作票中，同时有检修和试验时，试验前应得到（）的同意。
A.试验负责人
B.工作负责人
C.调度同意
D.工作许可人

[填空题]Mary dreamt that she could travel along the Changjiang River one day. Mary ______ traveling along the Changjiang River one day.

[单选题]除当班车站票务工作人员、站区管理人员外，其他人员必须得到（）人员的许可，并核实身份后由车站当班票务工作人员陪同方可进入车站票务管理室和车站”客服中心”。
A.当班站区长或以上级别
B.当班值班站长或以上级别
C.当班行车值班员或以上级别
D.当班客运值班员

[多选题]下列诗句描绘的景象，位于黄河流域的是（ ）。
A.A:江作青罗带，山如碧玉簪。
B.B:渭城朝雨浥轻尘。客舍青青柳色新。
C.C:琪树明霞五凤楼，夷门自古帝王州。
D.D:天门中断楚江开，碧水东流至此回。
E.略
F.略

[判断题]王某用计算机上互联网,通过后门程序先后侵入某部队网站后台,更改网页源代码,添加黑链接代码,由于未造成损失,王某的行为不构成犯罪。( )
A.正确
B.错误

[单选题]JCZC-150型继电器的接点组数为（ ）
A.2QHJ
B.2QH、2H
C.4Q、4H
D.2QH

[单选题]有一个厂区内建有铁路线的大型石化厂，则该厂区储存汽油的仓库与厂区内铁路中心线的防火间距不应小于（ ）m。
A.10
B.20
C.30
D.40

[多项选择]下列哪项不是SQL命令(选择一个最佳答案)？
A. MERGE
B. UPSERT
C. COMMENT
D. SAVEPOINT
E. 以上都是SQL命令

[单选题]小儿肺炎时室温和相对湿度一般维持在
A.15℃左右,40%
B.18℃左右,50%
C.20℃左右,60%
D.22℃左右,50%
E.24℃左右,60%

[单项选择]