( )除设计图另有规定者外,所有垂直支架应保持其垂直,其垂直允许偏差______。
(A)层高不大于5m时为6mm,层高大于5m时为8mm
(B)层高不大于5m时为8mm,层高大于5m时为6mm
(C)层高不大于5m时为7mm,层高大于5m时为5mm
(D)层高不大于5m时为5mm,层高大于5m时为7mm
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(A)层高不大于5m时为6mm,层高大于5m时为8mm
(B)层高不大于5m时为8mm,层高大于5m时为6mm
(C)层高不大于5m时为7mm,层高大于5m时为5mm
(D)层高不大于5m时为5mm,层高大于5m时为7mm