【多选题】
桥梁按桥面位置分哪几种?___
A. 上承式桥
B. 梁式桥
C. 下承式桥
D. 中承式桥
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答案
ACD
解析
暂无解析
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推荐试题
【单选题】
Read this pasaage and answer the five questions
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Question2:
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