某医院院内感染率为0.0034人／人日，则这个值是（） ["相对比指标","频率指标","强度指标","时间指标","绝对数指标"]
等于（）． ["-1/6","1/6","-1/3","1/3"]
某医院某年住院人中胃癌患者占5％，则5％是（） ["相对比指标","频率指标","强度指标","时间指标","绝对数指标"]
不拒绝实际上不成立的H0用（） ["α","1-α","β","1-β","以上均不是"]
设f（x）在［-a，a］（a>0）上连续，则等于（）． ["['['
","0","
","
"]
图1中阴影部分为一高层建筑内的消防控制室的平面位置图，请分析以下问题：
