问题
单项选择题
根据《钢结构工程施工质量验收规范GB50205-2001》，目前，常采用的最有效的焊缝内部缺陷检测方法是（）
A.超声波探伤
B.磁粉检测
C.射线检测
D.涡流检测
答案
参考答案：A
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根据《钢结构工程施工质量验收规范GB50205-2001》，目前，常采用的最有效的焊缝内部缺陷检测方法是（）
A.超声波探伤
B.磁粉检测
C.射线检测
D.涡流检测
参考答案：A
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| Ever since 1 was little, my favourite season was winter. I loved to play in the snow and enjoyed the hot chocolate. 1 , winter never gave me the special gift of snow on my birthday. I would ask my grandmother 2 it didn't snow on my birthday. She would laugh and tell me I asked too many questions. 3 one day, she promised that she would make it snow on my next birthday. That year, 4 my birthday, my grandmother died. I was sad but angry because she had promised to make it snow. The day of my sixth birthday, I woke up and ran to the window, hoping to see just one snowflake(雪花). But there was no 5 . I felt mad at my grandmother. She had broken a promise. By my sixteenth birthday, I 6 all hope of getting my snow, even though I still wished for it.During my party, I stayed with my friends and family and was truly 7 . I 8 the best time ever! Then I saw the white snow 9 down all around. I was so excited that I ran around screaming and laughing. My friends all laughed 10 me, but I didn't care. When I 11 home, my grandpa said he had a gift for me. I was 12 because he had given me a gift. It was a small white box, which looked old. I opened it. There was a crystal snowflake(冰晶雪花)with a card that 13 , “Happy Birthday.” How could this be? My grandpa said it was my grandmother's final 14 on my “sweet sixteenth”. I cried.I was 15 that my smiling grandmother angel was and had been watching over me. | ||||
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