问题 单项选择题

钢管焊接时,不同壁厚的管节对口时,管壁厚度相差不宜大于3mm。不同管径的管节相连时,两管径相差大于小管管径的15%时,可用渐缩管连接。渐缩管的长度不应小于两管径差值的2倍,且不应小于()mm。

A.100

B.200

C.300

D.400

答案

参考答案:B

完形填空

One Monday morning, I was standing waiting for the train and suddenly felt ill. I couldn’t stand still, and the world began to sway(摇摆)and then went black. All I heard was “Oh, my God, she’s falling. ”The next thing I  31 was that the doctor was asking me my name. This happened   32 I was too tired. I was so busy cleaning my new house that I didn’t eat  33  last weekend.

The doctor told me that a gentleman waiting for the   34 saw me fall down. He got to my side  35 , and told others to call 120. He stayed with me   36  the ambulance(救护车)arrived. Then he went with me to the hospital, which made him  37 his train. The doctor told me the gentleman didn’t want to leave his name.

I don’t know who this gentleman is.   38   if he reads this article and remembers a young lady fainting(晕倒)at the train station, I’d like 39 to know that I want to say “Thank you” to him. Whenever I meet with such a thing, I will do the same as he   10   to me. And I’ll pass on the kindness to others.

­小题1:A. met            B. remembered          C. said

小题2:A. so                 B. because         C. though

小题3:A. little             B. much                C. many

小题4:A. train              B. plane               C. bus

小题5:A. at first           B. just now            C. at once

小题6:A. while              B. since               C. until

小题7:A. catch          B. miss                C. drop

小题8:A. Or             B. Although        C. But

小题9:A. you            B. him                 C. he

小题10:A. does              B. do                  C. did

单项选择题