问题 问答题

回弹仪的基本测试原理是什么?

答案

参考答案:

回弹仪的基本测试原理就是利用拉力弹簧驱动重锤(1分),通过弹击杆作用混凝土表面(1分),以重锤回弹的距离与拉力弹簧初始拉伸长度比值的百倍整数值为被测混凝土的回弹值(2分),再由回弹值与混凝土抗压强度间的相关关系推定混凝土的抗压强度(3分)。

阅读理解

I can’t remember when I fell in love with music. Maybe it happened when I was feeling blue sometime long ago. I can’t tell you exactly how music makes me feel better. But while listening to music, especially light music, it makes me feel calm and peaceful. Now I am listening to a song named Moon River. It is really a fantastic song. I didn’t like this song at the beginning, but later I found its slow melody and beautiful lyrics deeply touching.

“Oh, dream maker, you heart breaker. Wherever you’re going I’m going your way. Two drifters(流浪者) are off  to see the world. There’s such a lot of world to see.”

Yes. Although there is a long way to go for the drifters and maybe there are many troubles ahead, he seems afraid of nothing. I like music. Music reminds me that human beings have a lot in common even if they come from different countries or backgrounds, because we all have the same feeling or understanding of melodies and words.

小题1:The writer likes     music.

A.popular

B.light

C.classical

D.dance小题2:The writer didn’t like the song called Moon River       .

A.now

B.at all

C.at the beginning

D.very much小题3:From the song, we know that the drifters seem afraid of       .

A.everything

B.police

C.dogs

D.nothing小题4:The writer thinks people who come from different countries have      .

A.the same feeling of melodies and words

B.different understanding of melodies and words

C.different feelings of melodies and words

D.the same understanding of sound and words小题5:The writer began to love music when he/she was      sometime long ago.

A.happy

B.excited

C.tired

D.blue

单项选择题