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[单选题]
制定测强曲线时,分别按龄期为(),进行立方体试件的回弹超声和强度试验
A.3,7,14,28,60,90,180
B.1,3,5,7,14,28,60,90
C.7,14,28,60,90,180,240
D.3,7,14,28,60,90180,360
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A.3,7,14,28,60,90,180
B.1,3,5,7,14,28,60,90
C.7,14,28,60,90,180,240
D.3,7,14,28,60,90180,360
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