单选题：The actors working at the museum explain what they do to the

题目内容：

The actors working at the museum explain what they do to the visitors. A．Right
B．Wrong
C．Not mentioned

参考答案：

答案解析：

背景资料：某写字楼工程，地下2层，地上18层。现浇混凝土框架结构。结构垂直运输采用塔吊，装饰装修采用外用电梯，结构施工

背景资料：某写字楼工程，地下2层，地上18层。现浇混凝土框架结构。结构垂直运输采用塔吊，装饰装修采用外用电梯，结构施工外脚手架采用扣件式钢管落地脚手架，模板工程

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