单选题:Bicycle sales fell in 2007 but rose again in 2008 to be at t 题目分类:初级 题目类型:单选题 查看权限:VIP 题目内容: Bicycle sales fell in 2007 but rose again in 2008 to be at the same level as in 2006. 参考答案: 答案解析:
若正常人尿铅分布是对数正态分布,先测定400例正常人尿铅值,以尿铅过高为异常,则其95%正常值范围为 若正常人尿铅分布是对数正态分布,先测定400例正常人尿铅值,以尿铅过高为异常,则其95%正常值范围为 分类:初级 题型:单选题 查看答案
The import manifest has to be accompanied by other documents The import manifest has to be accompanied by other documents as may be required 分类:初级 题型:单选题 查看答案