预应力混凝土施工采用先张法或后张法,其适用范围分别是()
A.先张法适用于工厂预制构件,后张法适用于现浇构件
B.先张法适用于工厂预制的中小型构件,后张法适用于大型现浇构件
C.先张法适用于中小型构件,后张法适用于大型构件
D.先张法宜用于通用构件和标准构件,后张法宜用非标准构件
正确答案是B
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