遇有冲刷、起土、上拔或导地线、拉线松动的杆塔,登杆塔前,应先(),打好临时拉线或支好

题型:单项选择题

问题:

遇有冲刷、起土、上拔或导地线、拉线松动的杆塔,登杆塔前,应先(),打好临时拉线或支好架杆后,再行登杆。

A.培土加固

B.三交待

C.两穿一戴

考点:电气工程师(供配电)安全安全题库
题型:单项选择题

Life is important. You should always have fun and new experiences, because you never know what day will be your last. You shouldn’t hold anger. You never know what could happen next. I learn all this at the age of nine.

It was the summer before fifth grade. My best friend Nessa and I were playing. We got angry with each other and had a fight. My older cousin, Tiffany, broke up our fight. I remember Nessa storming out of my grandmother’s house saying, “ I hope we never speak again !”

I replied, “good, I don’t need you as a friend!”

I went into the house and tried to be quiet. Then I heard people shouting outside. My cousin rushed in. she said that Nessa had been hit by a street truck as she crossed the road. The driver didn’t see her. I felt sad. I wished it had been me instead. It could have been avoided if we hadn’t had that fight!

When the ambulance救护车arrived a few minutes later, they said she was dead. I was a real mess. I had to see a psychologist心理医生for the rest of the summer.

I miss Nessa so much and I think of her always. She taught me how valuable and important life is and that you should never hold anger because you never know when you’ll see that person again.

小题1:the story happened when___

A.the writer was Grade Five

B.summer vacation was coming

C.Nessa was nine years old

D.the writer was nine years old小题2:Nessa and the writer were playing ___ on that day

A.at Nessa’s house

B.at the house of the writer’s grandma

C.at the writer’s house

D.at the house of the writer’s cousin小题3:which of the following is TRUE according to the passage?

A.Nessa and Tiffany got angry with each other and had a fight

B.the writer played games happily with Nessa all the time

C.Nessa was hit by a truck after they had a fight

D.Nessa was sent to the hospital and saved by the doctors小题4:from the last paragraph we can infer 推断that the writer___

A.has never thought of Nessa since then

B.didn’t regret for what had happened that day

C.will be more kind to others

D.lives a good life because of Nyssa

题型:单项选择题

应采取虫媒隔离的是()

A.细菌性痢疾

B.艾滋病

C.流行性脑脊髓膜炎

D.乙型肝炎

E.流行性乙型脑炎

题型:单项选择题

关于矩阵的论述,错误的是:()

A.矩阵与CT图像质量有关

B.矩阵是二维排列的象素阵列

C.矩阵影响图像空间分辨率

D.采样野固定,矩阵越大,像素量越多

E.扫描野与矩阵成反比关系

题型:单项选择题

外围电路用ECL电路,使用8K×4bit的sram存储器芯片构成256K×32bit的cache存储器。则需要()片存储芯片。

A.32

B.64

C.128

D.256

题型:单项选择题

TCP/IP网络中常用的距离矢量路由协议是()。

A.ARP

B.ICMP

C.OSPF

D.RIP

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