托福阅读植物类话题长难句解析
长难句是托福阅读考试中的难点之一。这些句子往往隐含着一些题目答案。因此大家想要拿到阅读高分，就要对长难句进行重点备考。和出国留学网小编一起来看看托福阅读植物类话题长难句解析！1. The ancestors of plants were photosynthetic single-celled organisms that gave rise to plants presumably lacked true roots， stems， leaves， and complex reproducti...