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标记为SBS I PY M PE 3 10 GB 18242-2008的材料不透水性要求时间()min,压力()MPa下不透水。
A.30min,0.2MPa
B.60min,0.2MPa
C.30min,0.3MPa
D.60min,0.3MPa
参考答案:C
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