有一座圆弧拱形桥,它的跨度为60米高为18米,当洪水泛滥到跨度只有30米时采取紧急措施现拱顶离水面有4米,是否采取紧急措施急!!!!!!!!!!!!!!!!!!!!!!!!!!!!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 13:47:28
![有一座圆弧拱形桥,它的跨度为60米高为18米,当洪水泛滥到跨度只有30米时采取紧急措施现拱顶离水面有4米,是否采取紧急措施急!!!!!!!!!!!!!!!!!!!!!!!!!!!!](/uploads/image/z/10456970-50-0.jpg?t=%E6%9C%89%E4%B8%80%E5%BA%A7%E5%9C%86%E5%BC%A7%E6%8B%B1%E5%BD%A2%E6%A1%A5%2C%E5%AE%83%E7%9A%84%E8%B7%A8%E5%BA%A6%E4%B8%BA60%E7%B1%B3%E9%AB%98%E4%B8%BA18%E7%B1%B3%2C%E5%BD%93%E6%B4%AA%E6%B0%B4%E6%B3%9B%E6%BB%A5%E5%88%B0%E8%B7%A8%E5%BA%A6%E5%8F%AA%E6%9C%8930%E7%B1%B3%E6%97%B6%E9%87%87%E5%8F%96%E7%B4%A7%E6%80%A5%E6%8E%AA%E6%96%BD%E7%8E%B0%E6%8B%B1%E9%A1%B6%E7%A6%BB%E6%B0%B4%E9%9D%A2%E6%9C%894%E7%B1%B3%2C%E6%98%AF%E5%90%A6%E9%87%87%E5%8F%96%E7%B4%A7%E6%80%A5%E6%8E%AA%E6%96%BD%E6%80%A5%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81%EF%BC%81)
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