问题
单项选择题
在工业与民用建筑中，通常用（）来标定点的位置。
A.铁钉
B.花杆
C.龙门板
D.蛅±
答案
参考答案：A
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在工业与民用建筑中，通常用（）来标定点的位置。
A.铁钉
B.花杆
C.龙门板
D.蛅±
参考答案：A
| 完形填空 | |||
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