试题与答案

跨度为6m混凝土现浇板的底部模板及其支架拆除时的混凝土强度应达到设计强度的（）％。A

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题型：单项选择题

题目：

跨度为6m混凝土现浇板的底部模板及其支架拆除时的混凝土强度应达到设计强度的（）％。

A、50

B、75

C、85

D、100

答案：

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