大家帮我参详一下，这句话的意思是不是正文要双倍行距？单栏是什么意思？
后一个意见我理解的是把所有图标统一放置到文末，正文不出现图表，对不对？谢谢！
A marked double-spaced version, single column, of the manuscript to ease the reviewers' work. In this version please consider providing the figures and tables inline, to facilitate the work of the reviewers and the editor.