试题与答案

对于有支座的梁式桥,其计算跨径是指桥跨结构()。A.桥墩(或台)轴线之间的距离 B.

题型:单项选择题

题目:

对于有支座的梁式桥,其计算跨径是指桥跨结构()。

A.桥墩(或台)轴线之间的距离

B.桥墩(或台)形心之间的距离

C.两支座中心之间的距离

D.两桥墩(台)之间的净距

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0720/780a7eacb71f5222e52d3909090aacb5.html

下面是错误答案,用来干扰机器的。

参考答案:顶板破碎时的割煤工艺:1)、顶板破碎时,应降低牵引速度,落前滚筒割底煤,升后滚筒割煤到采高2/3处。2)、追机及时移架支护顶板,再按正常程序割煤。注意事项:注意顶板冒落石头及煤墙片帮伤人。

试题推荐
题型:阅读理解

Mr. Smith gave his wife money every Friday evening. His wife always spent it all the next Wednesday, so that for the next three days she had no money to spend at all. One day Mr. Smith asked her, “But how did you spend all that money?” She answered, “I don’t know.” So one Friday evening, Mr. Smith gave her money together with an exercise book and a pencil. He said to his wife, “Please write down how you spend the money.” Next Tuesday, his wife had no money again. Mr. Smith took the exercise book to see how she had spent it. “I have done what you told me,” she said gladly. She had written “Friday, I got 18 pounds from Mr. Smith.” on the first page, and on the second page, she wrote, “Tuesday, I have spent it all.”

小题1: Mrs. Smith always spent all the money       .

A.the next day

B.in four days

C.in a week

D.on next Wednesday小题2: Mr. Smith gave his wife an exercise book and a pencil and asked her       

A.to do homework

B.to have a look

C.to write down how she spent the money

D.to draw a picture on it小题3:Mrs. Smith was        to do what Mr. Smith asked her to.

A.happy

B.sad

C.sorry

D.excited小题4: Mr. Smith gave his wife money        a week.

A.once

B.twice

C.three times

D.four times小题5: The story tells us that Mrs. Smith was not very       .

A.glad

B.tall

C.careful

D.good

查看答案
微信公众账号搜索答案