as occurs on highways 这句话的主语是不是省略了

This thesis is concerned with a particular case of the above problem in which all toll arcs are connected and constitute a path, as occurs on highways.

请先 登录 后评论

最佳答案 2021-12-07 22:38

这个as从句就是传统语法中所谓as引导的非限制性定语从句,as指代all toll arcs are connected and constitute a path这个分句的内容,并在从句中作主语。

请先 登录 后评论

其它 0 个回答

  • 1 关注
  • 0 收藏,1154 浏览
  • 袁圆 提出于 2021-12-06 16:15