单项选择题
A.5皮砖 B.4皮砖 C.3皮砖 D.2皮砖
A.±1% B.±2% C.±3% D.±4%
A.0.5m B.1.0m C.1.5m D.2.0m
A.门、窗洞口侧边100mm范围内 B.门、窗洞口侧边110mm范围内 C.门、窗洞口侧边120mm范围内 D.门、窗洞口侧边130mm
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