GB8408-2018《大型游乐设施安全规范》规定:从坐席面至上方障碍物的距离不小于_____mm。专供儿童乘坐的游乐设施不小于_________mm。(单选题)
A.800mm600mm B.1000mm800mm C.1200mm1000mm D.1400mm1100mm正确答案D
GB8408-2018《大型游乐设施安全规范》规定:从坐席面至上方障碍物的距离不小于_____mm。专供儿童乘坐的游乐设施不小于_________mm。(单选题)
A.800mm600mm B.1000mm800mm C.1200mm1000mm D.1400mm1100mm正确答案D