问题 问答题 简答题

用埋弧焊焊接Q345(16Mn)钢时,可用H08A焊丝或H08MnA焊丝配合HJ431焊剂。不同焊丝焊接的结果有什么不同?两者的应用场合是否一样?

答案

参考答案:

H.08A焊丝焊接是不开坡口对接,焊后焊接痕迹不大,而H08MnA焊丝焊接是中板开坡口对接,焊后有个坡口焊接痕迹。

两者应用场合不一样。

阅读理解

阅读理解。

     One day, a poor young artist stood at the gate of the subway station, playing his violin. He wanted

to collect money for his schooling. When he got home, he found there was a lottery ( * * ) among the

money.    

     The next day, he went there again, put his hat on the ground. Meanwhile he took out a large piece

of paper and laid it on the ground. It said, "Last night, a gentleman named George Sang put an important

thing into my hat by mistake. Please come to get it soon. "Then he began playing.

     It caused a great excitement and people wondered what it could be. After half an hour, a man ran

there and said, "Yes, it's you. You did come here. I knew that you re an honest man and would certainly

come here. "    

     The young violinist asked calmly, "Are you Mr. George Sang?"    

     The man nodded. The violinist asked,"Did you lose something?"    

     "Lottery. It's a lottery", said the man.    

     The violinist gave him the lottery.    

     George was excited to see the lottery. He said he bought a lottery ticket a few days ago. The awards

opened yesterday and he won a prize of $500,000.

     Later someone asked the violinist, " Why didn't you take the lottery ticket for yourself? Then you

don't have to play here."

    The violinist said, "Although I don't have much money, I live happily; but if I lose honesty I won't be

happy forever."

1. A poor young artist ______.   

A. was not a happy man    

B. didn't give the lottery back to the man    

C. was angry with the old man    

D. had no money to go to school

2. Why did the violinist give the lottery back?    

A. He didn't like money.    

B. He wants to be an honest man.    

C. He won't be happy forever.    

D. He bought a lottery ticket a few days ago.

3. What caused a great excitement?   

A. He began playing.    

B. He took out a large piece of paper and laid it on the ground.     

C. He was looking for the loser.    

D. He lost honesty.

4. ______ is Mr.George Sang.

A. A poor young artist

B. The violinist

C. A happy man

D. A gentleman who lost the lottery

5. Which of the following is true?    

A. A poor young artist lives happily.    

B. Mr. George Sang is the violinist.    

C. The violinist took the lottery ticket for himself.    

D. All the people were excited.

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