多项选择题

对于爆炸性危险环境的电气设计，以下做法正确的是：（）

A.在爆炸性环境中，低压电力电缆中性线的额定电压应与相线电压相等
B.在1区内的电力电缆可采用截面1.5mm2的铜芯电缆
C.在1区内的控制电缆可采用截面2.5mm2的铜芯电缆
D.在爆炸性环境内，引向380V鼠笼型感应电动机支线的长期允许载流量不应小于断路器长延时过电流脱扣器整定电流的1.25倍

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多项选择题

在海拔不超过1000m地区，500kV线路的导线分裂数及导线型号为以下哪些项时可不验算电晕？（）

A.2×JL/G1A-630/45
B.3×JL/G1A-400/50
C.4×JL/G1A-300/40
D.1×JL/G1A-630/45

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第二节短文理解1阅读下面短文，从[A](Right)、[B](Wrong)、[C](Doesn't Say)三个判断中选择一个正确选项。How to start your life in the USA? It's very important to learn to use English well. But very often it isn't easy to find someone to talk to in a big city. However, here are some suggestions.If you want to use English in the street, first, get or borrow a dog ! Walk him several times a day! Americans love pets(宠物) and usually stop to talk to anyone with a dog.Then, try to eat in a restaurant. People sitting at the same table with you will sometimes talk to you if they see that you are a foreigner.Always ask for information from a woman if you are a man, and from a man if you are a woman ! This often works very well though I don't know why.Learn to say 'Please,' 'Thank you' and 'You're welcome' before you come to theUSA and use them all the time! Always say 'Fine' in answer to the question 'How are you'.Also, when someone says they will meet you at six o'clock, be sure to be there by six.Americans think highly of time and expect everyone to be 'on timE.'All in all, don't worry! Just bring a lot of money and do as I told you. I'm sure you will have a very good start and enjoy your fife herE.Of all the pets Americans like dogs best.A.RightB.WrongC.Doesn't say

A.Of
B.
A.Right
B.Wrong
C.Doesn't

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