问题
单项选择题
管道上的焊缝中心线与管子弯曲起点的距离木得小于管道的外径，同时不得小于（）。
A.l00mm
B.150mm
C.75mm
D.200mm
答案
参考答案：A
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管道上的焊缝中心线与管子弯曲起点的距离木得小于管道的外径，同时不得小于（）。
A.l00mm
B.150mm
C.75mm
D.200mm
参考答案：A
| 阅读短文，完成下表。 | ||||
| Prieto is my best friend. We go to the same school and we are in the same class. We like the same colour and we play the same game. We even wear the same T-shirts in the summer. But we are different. Prieto is one year younger than me. He is shorter but heavier than me. He usually gets up earlier than I do! Why? Because I watch lots of TV!
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