问题
单项选择题
在管道上焊接法兰短管时，法兰短管必须与管道（），焊接质量应符合国家相关标准。
A、平行
B、交叉
C、垂直
D、等径
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
在管道上焊接法兰短管时，法兰短管必须与管道（），焊接质量应符合国家相关标准。
A、平行
B、交叉
C、垂直
D、等径
参考答案：C
Miss Wang is twenty-three years 41 . She likes children and her 42 work. From Monday to Friday she stays at 43 and gives the children classes. She has much work 44 , but she often plays sports 45 her students after school. The children like 46 very much. 47 Saturday she drives her car to her father’s house and 48 with her father and mother. Sometimes she goes to see her friends on Sunday. She drives back 49 school on Monday morning. She 50 singing and swimming. She’s a nice girl.
|