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【简答题】

Earthquakes happen without warning(前兆). They can happen any time of a day, at any point during the year. When an earthquake is happening, you should know what you should do or not do.
Do NOT go outside. You could get injured from falling glass or parts of buildings. If you are outside, stay away from buildings and power lines(输电线).
Stay under a desk, table, or other strong furniture. Hold on to it. Or stay in a corner of the building. Cover your face and head with your arms and cover your mouth with a towel or clothing. Stay inside until shaking stops and it is safe to go outside.
Keep away from windows, pictures or advertisements on the wall or the building, and anything else that could fall and hurt you. Most people get injured by falling things during an earthquake, not by the shaking itself.
Also keep away from a fire. You could fall down and burn yourself on the fire.
If you are driving when an earthquake happens,stop the car if it’s safe. Stay inside your car until the earthquake stops, and don’t drive near bridges. Try not to stop by power lines or trees. These could fall and hurt you.
小题1:It isn’t safe for you to ______ while the earthquake is happening.A.run out of the buildingB.stay in a corner of the buildingC.cover your head with your armsD.cover your mouth with a towel小题2:From this passage, we know ______ .A.all people are frightened at earthquakesB.earthquakes may happen at any timeC.we can’t save ourselves in an earthquakeD.people won’t get injured in an earthquakes if they are careful enough.小题3:The best title for this passage should be “_____________”A.How Earthquakes HappenB.How to Drive a CarC.What We Should Do in EarthquakesD.Why Earthquakes Happen

题目标签:输电线电线
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【单选题】架空绝缘配电线路放紧线过程中,应将绝缘线放在()内。

A.
铁滑轮;
B.
铝滑轮;
C.
铝合金滑轮;
D.
塑料滑轮或套有橡胶护套的铝滑轮。

【多选题】浇筑基础应表面平整,对单腿尺寸允许偏差说法正确的是()。(GB50233—2014《110kV~750kV架空输电线路施工及验收规范》6.2.17)

A.
保护层厚度的负偏差不得大于5mm
B.
保护层厚度的负偏差不得大于10mm
C.
同组地脚螺栓中心或插入角钢形心对设计值偏移不应大于5mm
D.
同组地脚螺栓中心或插入角钢形心对设计值偏移不应大于10mm

【单选题】在静电场模拟测绘实验中,平行输电线两电极间工作电压10V, 测量得到的5V等势线弯曲(如图所示),下列哪个原因是不可能的

A.
电极的表面因氧化而造成的接触电阻增大
B.
电压表的示数显示偏大
C.
电压表的示数显示偏小
D.
导电介质分布不均匀