题目内容
(请给出正确答案)
[单选题]
塑料门窗安装分项工程中,窗框必须与拼栓料严密,固定点间距不大于()。
A.600mm
B.800mm
C.1000mm
D.1200mm
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A.600mm
B.800mm
C.1000mm
D.1200mm
A.500mm,180mm
B.600mm,200mm
C.500mm,200mm
D.600mm,180mm