题目内容

《特种设备安全监察条例》规定：电梯的安装、改造、维修，必须由()的单位进行。

A. 电梯制造
B. 通过合同委托的依照本条例取得许可
C. 通过合同同意的依照本条例取得许可
D. 电梯维修
E. 特种设备安全监督管理部门

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