单选题:在施工阶段,应按照《公路桥梁和隧道工程施工安全风险评估指南(试行)》要求,须进行施工安全风险评估的项目是(

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题目内容:
在施工阶段,应按照《公路桥梁和隧道工程施工安全风险评估指南(试行)》要求,须进行施工安全风险评估的项目是( )。 A.跨径大于40m的石拱桥
B.跨径大于或等于100m的钢筋混凝土拱桥
C.跨径大于或等于100m的梁式桥
D.跨径大于800m的悬索桥

参考答案:
答案解析:

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