我国的少数民族主要分布在[ ] A．西北、西南和东北地区 B．东南、西南和东北地

阅读理解

       One day, my mother and I went shopping at a Chinese supermarket. We found that the crucian carps(鲫鱼)in the seafood counter were very fresh, as a result we chose four crucian carps and handed them

over to the seller. As it would take some time to clean the fish and dispose(处理)of their internal organs (内脏), we decided to look around the other places first. When we came back to the seafood counter, I

asked the seller for my fish. He raised one, which was being cleaned, to let me have a look and tell me he was still working on the fish. I hurriedly said, "Go ahead. Go ahead." I meant for him to go on.

       Unexpectedly, the seller stopped his work, looking at me with puzzled expression, and asked me,

" Go ahead?" "Yes," I said, "go ahead". He pointed at the fish in all seriousness, and repeated very

seriously, "Head?" Paying no more attention to him, I turned back to chat with my mother. Suddenly,

"Bang, bang, bang," was heard from the counter. Quickly, the seller passed the four fish without heads

to me.

       I asked loudly, "Why did you cut all the heads off?" The seller was also very angry and said, "Didn't

you tell me to go ahead again and again?"On hearing what he said I felt funny as well as angry. It turned

out that he considered "go ahead" as "cut the head off". No wonder he asked me several times about it!

       Taking the headless fish home, I became frightened. Wouldn't it be possible that the hairdresser would have cut my head off if I had gone to get my haircut?

1. Where did the story happen?    

A. In China.  

B. On the beach   

C. In a Chinese supermarket    

D. At the hairdresser's

2. What does "Go ahead" mean in this passage?   

A. Cut off the heads of the fish.  

B. Go on to clean the fish.    

C. Continue to walk .         

D. Go around.

3. What does the underlined word "frightened" mean?

A. 开心的

B. 庆幸的

C. 害怕的

D. 无所谓的

4. Why did the seller cut all the heads off?    

A. Because I asked him to do so.    

B. Because he wanted to cut off all the heads.    

C. Because I told him to go ahead again and again.    

D. Because he didn't understand what I said.

一厂与二厂前年和去年的产值如下表。根据表中的数值，下列叙述正确的是（）

A．一厂产值比二厂增加多，发展也比二厂快

B．一厂产值比二厂增加多，发展比二厂慢

C．二厂产值比一厂增加多，发展也比一厂快

D．二厂产值比一厂增加多，发展比一厂慢

单层单面DVD的存储容量为4.7GB，它的容量是CD-ROM的（1）倍，其容量提高的主要原因是（2）。

空白（2）处应选择（）

A.加大盘片厚度、减小光道间距

B.减小最小凹凸坑长度、减小光道间距

C.加大盘片厚度、增加盘片直径

D.增加盘片直径、减小光道间距

一百多年来，现代语言科学经历了三个重要时期。历史比较语言学、结构主义语言学和转换生成语言学分别是这三大时期的代表。
对这段话最准确的复述是( )

A．现代语言学发展了一百多年

B．现代语言学经历了历史比较语言学、结构主义语言学和转换生成语言学三大时期

C．历史比较语言学、结构主义语言学和转换生成语言学是现代语言学

D．历史比较语言学、结构主义语言学和转换生成语言学都经历了一百多年的发展

全口义齿实现前伸平衡最有效的方法是（）

A．调整髁导斜度

B．调整切导斜度

C．调整牙尖斜度

D．调整补偿曲线曲度

E．调整定位平面斜度