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钢筋混凝土预制桩起吊时,混凝土强度应至少达到设计强度的()。A.30%B.50%C.70%D.100%
钢筋混凝土预制桩起吊时,混凝土强度应至少达到设计强度的()。 A.30% B.50% C.70% D.100%
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钢筋混凝土预制桩起吊时,混凝土强度应至少达到设计强度的()。 A.30% B.50% C.70% D.100%
A.30%
B.50%
C.70%
D.100%
A.70%
B.52%
C.100%
D.75%
A.25%
B.50%
C.75%
D.100%
A.85%
B.70%
C.80%
D.75%
A.50%
B.100%
C.70%
D.25%
A.50%
B.100%
C.75%
D.25%