问题 单项选择题

《工程场地地震安全性评价技术规范》(GB17741—1999)规定,工程场地地震安全性评价工作共分()级。

A.Ⅱ

B.Ⅲ

C.Ⅳ

D.Ⅴ

答案

参考答案:C

解析:工程场地地震安全性评价工作共分四级,各级工作必须符合下列要求:①I级工作包括地震危险性的概率分析和确定性分析、能动断层鉴定、场地地震动参数确定和地震地质灾害评价。适用于地震安全性要求高的重大建设工程项目中的主要工程。②Ⅱ级工作包括地震危险性的概率分析及地震小区划。适用于《中国地震烈度区划图(1990)》烈度值6度及6度以上地区的大城市、重要经济开发区以及覆盖区域较大的重要生命线工程中的主要工程。③Ⅲ级工作包括地震危险性的概率分析、场地地震动参数确定和地震地质灾害评价。适用于《中国地震烈度区划图(1990))烈度值6度及6度以上地区除1级、Ⅱ级外的重大建设工程项目中的主要工程。④IV级工作依据现行《(中国地震烈度区划图(1990))使用规定》。对需要进行地震烈度复核者进行地震危险性概率分析。适用于I级、Ⅱ级、Ⅲ级以外的工程。

阅读理解

I was very disappointed not to be able to go to the jazz concert last Friday. The announcement in the paper said that you could buy tickets at the theatre box office in Richland Hills any day between 10:30 a.m. and 4:00 p.m. Since I work from 9:00 a.m. to 5:30 p.m., the only time I could go to the theatre was during my 45-minute lunch break. Unluckily, the theatre is on the other side of the town, and the bus service between my office and Richland Hills is not very good. But if you are lucky, you can make the round trip in 45 minutes. Last Monday, I stood at the bus stop for 15 minutes waiting for a bus. By the time I saw one come around the corner, there was not enough time left to make the trip. So I gave up and went back to the office.

The same thing happened on Tuesday, and again on Wednesday. On Thursday, my luck changed. I got on a bus right away and arrived at the theatre in exactly 20 minutes. When I got there, however, I found a long line of people at the box office. I heard one man say he had been waiting in line for over an hour. Realizing I would not have enough time to wait in line, I caught the next bus and went back across the town. By Friday, I realized that my only hope was to make the trip by taxi. It was expensive, but I felt it would be worth to hear the concert. The trip by taxi only took 10 minutes, but it felt like an hour to me. When I got to the theatre, I was relieved to see that nobody was waiting in line. The reason, I quickly discovered, was that they had already sold out all the tickets.

小题1:The writer could go and buy the ticket __________.

A.any day before work hours

B.both before and after work hours

C.only during lunch time

D.on Saturday and Sunday小题2:The writer tried to go to the theatre every day, but was only successful______.

A.twice

B.three times

C.four times

D.five times小题3:He failed to get the ticket on Friday because _________.

A.it was impossible to make the round trip to the theatre in 45 minutes

B.the concert wasn’t on Friday

C.it was expensive to take a taxi

D.all the tickets had been sold out小题4:The word "______" can be used instead of the underlined(划线的)word "relieved".

A.nervous

B.terrified

C.pleased

D.sad

单项选择题