问题 单项选择题 案例分析题

某单层工业厂房,厂房柱距12m,采用工字形截面的实腹式钢吊车梁。设置有两台Q=25/10t的软钩桥式吊车,吊车每侧有两个车轮,轮距4m,最大轮压标准值Pk,max=279.7kN,横行小车质量标准值Q1=73.5kN,吊车轨道高度hR=130mm。

假定吊车为重级工作制时,作用在每个车轮处的横向水平荷载标准值最接近于()kN。

A.8.0

B.14.0

C.28.0

D.42.0

答案

参考答案:C

阅读理解

Last winter vacation, our class went to Xiangshan for a trip.Though the weather was a little cold, it was sunny.

At six in the morning we met at the school gate.We took a bus there.On the bus, our monitor told us an interesting story.The story was about an interesting man.Then three girls in our class sang songs.We were very happy.

At about seven thirty we got there.It was a beautiful mountain.There were many visitors.Then we started to climb the mountain.The boys had a climbing race(比赛).Li Ming won the first prize.He got a blue hat.At about nine o’clock we met a famous singer.Qi Hui and Ma Yan even got his autographs.They were very excited.

We had lunch in the mountain.We brought food from home and ate together.

After lunch we went to the zoo, because the was a new member(成员) in the zoo.It was a cheetah(猎豹).It came from Africa.

Finally, we took the bus back to school.Although we were tired, we really had fun.

小题1:How was the weather on that day?

A.It was warm and sunny.

B.It was hot and sunny.

C.It was cold, but sunny.

D.It was cold and cloudy.小题2:They went to the mountain       .

A.by bike

B.by bus

C.on foot

D.by car小题3:It took them about       to get to he mountain.

A.one and a half hours

B.an hour

C.forty minutes

D.half an hour小题4:They had lunch       .

A.at home

B.at school

C.in a restaurant

D.in the mountain小题5:Which of the following is TRUE according to the passage?

A.They were quiet on the bus.

B.Two students got the singer’s autographs.

C.They bought food in the mountain.

D.The cheetah came from America.

名词解释