单项选择题
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
A.4-8mm B.6-10mm C.8-12mm D.10-14mm
A.1N B.5N C.10N D.15N
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