The trend of rapid centralization of population distribution is also evident in population density. During the period from the first to the seventh census, the number of counties and districts with population densities of 500 persons per km2 gradually increased from 373 to 957. The ratio of the ...
百度试题 结果1 题目 With the rapid growth of population, the city ___ in all directions in the past five years. [ ] A.spreads B.has spread C.spread D.had spread 相关知识点: 试题来源: 解析 答案:B 反馈 收藏
Digital proxies of human mobility and physical mixing have been used to monitor viral transmissibility and effectiveness of social distancing interventions in the ongoing COVID-19 pandemic. We develop a new framework that parameterizes disease transmissi
3 With the rapid growth of population, the city___ in all directions in the past five years. A.spreads B.has spread C.spread D.had spread 4With therapid growth of population, the city ___ in all directions in the pastfive years.A.spreadsB.has spreadC.spreadD.had spreaded 5With...
With the rapid growth of population, the city___ in all directions in the past five years. A.spreads B.has spread C.spread D.had spread扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 B 考查时态。句意:随着人口的快熟增长,在过去五年当中,这座城市向四面八方扩展。结合语...
【题目】With the rapid growth of population, the city ___ in all directions in the past five years. A. spreads B. has spread C. spread D. had spread试题答案 在线课程 【答案】B 【解析】 试题分析:考查时态与体态分析。A. spreads一般现在时;B. has spread现在完成时;C. spread一般现在时;...
With the rapid growth of population, the city in all directions in the past five years. A.spreadsB.has spreadC.spreadD.had spread
With the rapid growth of population, the city___ in all directions in the past five years. A.spreads B.has spread C.spread D.had spread扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 B 考查时态。句意:随着人口的快熟增长,在过去五年当中,这座城市向四面八方扩展。结合语...
ArticleOpen access31 January 2023 Introduction The last two decades have shown a surge in research linking individual variation in different measures of sociality and variation in survival and/or reproductive success in social mammals (Ellis et al.2019; Snyder-Mackler et al.2020), though pathways ...
Genetic footprints of a rapid and large-scale range expansion: the case of cyclic common vole in Spain Article25 March 2023 Introduction As cities expand worldwide, urban areas will double in size, cover approximately 10% of Earth’s landmass, and host around 5 billion people by 20301. Urban...