直接引用是引用原话,必须用引号,并且除了标明作者和出版年以外,还要标明具体页码,p.与数字之间有空格,如下所示:Darwin used the metaphor of tree “to express the other form of interconnectedness — genealogical
期刊名称:铁道科学与工程学报 JOURNAL OF RAILWAY SCIENCE AND Engineering JOURNAL OF RAILWAL SCIENCE AND ENGINEERING TIEDAO KEXUE YU GONGCHENG XUEBAO Journal of Railway Science and Engineering 1672-7029 同行评议: