这句话是同位语吗?Rumor has it that more than 20 books on evolution a
这句话是同位语吗? Rumor has it that more than 20 books on evolution are in the publisher’s pipelines.其中that more than 20 books on evolution are in the publisher’s pipelines是同位语吗? 我怎么觉得是it的,但是好像又说不通。