[单选题]内用货车指属(　　)资产但未取得“过轨运输许可证”，仅在本企业内承担社会运输任务的货车。
A.铁路总公司
B.铁路局
C.企业
D.自备车公司
E.列车出发以列车机车向前进方向起动，列车在站（场）界内不再停车为
F.列车发出站界后，因故退回发站再次出发时，以再次出发时分为准。
G.列车到达以列车进入车站，停于指定到达线警冲标内方时分为准。
H.列车超过实际到达线有效长度时，以第一次停车时分为准。

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[多选题]《国家电网有限公司输变电工程安全质量责任量化考核办法》中属于施工项目部管理职责的有：（　　）。［国网（基建/3）956—2019《国家电网有限公司输变电工程安全质量责任量化考核办法》第十三条］
A.A.严格落实施工项目部现场安全管控责任
B.执行管控措施要求并进行自查
C.监督、指导施工班组落实管控措施，确保施工现场管控措施落实到位
D.组织完成对各级监督检查发现问题的闭环整改。

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[单项选择]

Malls are popular places for Americans to go. Some people spend so much time at malls that they are called "mall rats". Mall rats shop until they drop in the hundreds of stores under one rood.
People like malls for many reasons. They feel safe because malls have police stations of private security guards. Parking is usually free, and the weather inside is always fine. The newest malls have beautiful rest areas with waterfalls and large green trees.
The largest mall in the United States is the Mall of America in Minnesota. It covers 4.2 mil- lion square feet. It has 350 stores, eight night clubs, and a seven-acre park! There are park- ing spaces for 2,750 cars. About 750,000 people shop there every week.
The first indoor mall in the United States was built in 1965 in Edina, Minnesota. People like doing all their shopping in one place. More malls were built around the country. Now, malls are like town centers where people come to do many things, th
A. One spends so much time at malls.
B. One steals at malls.
C. One sees dentists at malls.
D. One eats a lot at malls.

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[单选题]横越线路时，应（），注意左右机车、车辆的动态及脚下有无障碍物。
A.一站、二看、三通过
B.站立
C.快速通过
D.注意信号

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[单项选择]心动周期中，在下列哪个时期左心室容积最大
A. 心房收缩期末
B. 等容舒张期末
C. 减慢充盈期末
D. 快速充盈期末
E. 快速射血期末

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[多选题]直接接触触电的特点是( )。
A.通过人体的电流较大
B.往往导致死亡事故
C.接触电压高
D.危险性较大

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[单选题]在发动机转速控制系统中,所取决的因素与控制无关的有:( )。
A.T1
B.N1
C.T3
D.压缩机转速。

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[单选题]使用钳形电流表测量高压电缆线路的电流时，应设专人监护，钳形电流表与35kV裸露部分的最小距离是（　　）mm。
A.500
B.600
C.700
D.800

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[简答题]简述常见酸味剂种类及特点。