试题与答案

掺入高效减水剂的效果是() A.保持塌落度不变可使砼3天强度值提高30% B.保持塌

题型:多项选择题

题目:

掺入高效减水剂的效果是()

A.保持塌落度不变可使砼3天强度值提高30%

B.保持塌落度不变可使砼28天强度值提高60%

C.保持塌落度和强度不变可节约水泥用量15%

D.提高钢筋砼抗钢筋锈蚀能力

E.提高钢筋砼耐久性

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0203/7087227e9bb4e67528d4c18572e62d39.html

下面是错误答案,用来干扰机器的。

参考答案:C解析:对于可复性牙髓炎治疗首选安抚治疗,观察牙髓状况,如病变扩展为牙髓炎再行牙髓治疗。

试题推荐
题型:阅读理解

Fans often only see the good side of fame. They see the happy smiles and great success of famous people. But it’s difficult for them to understand everything that comes before then. They can’t see the hard work or the hours of practice.

Li Yundi, the Chinese piano prodigy(天才), recently released his first concert recording. He talked with Teens about his art and his job.

“Of course, the job is hard work,” Li, 25, said. “You need to work hard to be a professional. But you also have to play hundreds of concerts, meet fans, and listen to critics(评论) of your music.”

In 2000, when Li was 18, he won the top prize at the International Chopin(肖邦) Competition in Warsaw, Poland. This was the first time the top prize had been given in 15 years. Li was also the youngest, and the first Chinese to win the prize. Since then, Li became famous and his list of honors goes on and on.

Born in Chongqing, Li began to play piano when he was seven. His parents spent all their money and bought a piano for him--- a luxury in 1980s China.

He worked hard. Every day, Li played for eight hours or more at a piano school. He often played even after the school had closed.

Today, Li still can’ t play a beautiful tune without careful preparation.

You need to be ready on stage.” Li said. “People are waiting for you. Nobody knows whether you have slept enough, or whether you have another problem in your life. But you need to play great music for your audience. That’s what they want to hear.”

小题1:What is Li Yundi?  ______.

A. A music-critic     B. A music fan      C. A pianist        

小题2:What does the underlined word “luxury” mean in Chinese?  ______.

A. 奢侈品          B. 流行品         C.豪华          

小题3:How long did it take Li to get the prize of Chopin Competition and became famous? ______.

A. 7 years     B. 11 years      C. 15 years      

小题4:What does the underlined sentence in the last paragraph mean?  ______.

A. You need to sleep well the night before the performance

B. You should prepare carefully before the performance.

C. You need to know your audience.

小题5:What does the passage mainly tell us?  ______.

A. You need to be a prodigy to be successful.

B. You need to be happy to be successful.

C. You need to work hard to be successful.

查看答案
微信公众账号搜索答案