多选题:城区内安装钢梁常用的架设方法有(  )。

题目内容:
城区内安装钢梁常用的架设方法有(  )。 A.自行式起重机整孔架设法
B.门架式起重机整孔架设法
C.支架架设法
D.缆索起重机拼装架设法
E.强迫位移法

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Text 2The issue of online privacy in the Interact age found new urgency followi

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