导航:题目详情 | 答案解析 | 相关问题 | 最新问题 横断面调查(cross—sectional in—regressiOn method) 大学 2020-08-18 19:20:03 横断面,正确答案 已帮助 人 横断面调查(cross—sectional in—regressiOn method)请帮忙给出正确答案和分析,谢谢! 热搜:公路路基的横断面形式有哪些 答案解析 难度★★☆ 搜索 正确答案:横断面调查(cross—sectional investigation):是指在某一较短时间内在一定地区范围内选择有代表性的对象对某几种项目和指标进行的一次性大数量调查。横断面调查(cross—sectionalinvestigation):是指在某一较短时间内,在一定地区范围内,选择有代表性的对象,对某几种项目和指标进行的一次性大数量调查。 相关问题 1、The exhaust ports of a diesel engine using the cross-flow scavenging method are opened and 2018-03-21 2、The cast iron _____ for the cross-head are attached to the top section and seal off the cr 2019-07-17 3、Section BDirections: In this section there are 10 incomplete sentences. For each sentence 2019-10-14 4、Section ADirections: In this section there are 10 incomplete sentences. You are required 2019-10-19 5、Section ADirections: In this section there are 10 incomplete sentences. You are required 2019-10-23 6、Section ADirections: In this section there are 10 incomplete sentences. You are required 2019-10-31