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[单选题]
按照《±800kV架空送电线路施工及验收规范》规定,冬季钢筋焊接,宜在室内进行,当必须在室外焊接时,其最低气温不宜低于()℃。
A.0℃
B.-5℃
C.-10℃
D.-20℃
查看答案
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A.0℃
B.-5℃
C.-10℃
D.-20℃
A.分段浇筑
B.连续浇筑
A.3m
B.5m
C.7m
A.±1.5%,±3%
B.±1.5%,±2.5%
C.±2.0%,±2.5%
D.±2.5%,±3.0%
A.±10mm
B.±20mm
C.±30mm
D.±40mm
A.60℃、80℃
B.50℃、60℃
C.80℃、60℃
D.80℃、50℃
A.0.2
B.0.18
C.0.15
D.0.16