paris

A Monographof Paris(Melanthiaceae)Morphology,Biology,Systematics and Taxonomy(重楼属形态学、生物学、系统进化与分类学).pdf

本书是一部关于重楼属研究的世界性专著,也是作者近20年来对重楼属进行多学科综合研究的主要成果总结,全书共7章,全面介绍了重楼属的分类历史、形态学、孢粉学、生活史特征、细胞学、经济用途、民族植物学、植物化学、药理学、比较与系统发育基因组学、生物地理学、分类学、物种保护等方面的最新成

Passage 2  Man has always wanted to fly. Some of the greatest men in history had thought about the problem. One of them, for example, was the great Italian artist, Leonardo Da Vinci. In the sixteenth century he made designs for machines that would fly, bu

Passage 2  Man has always wanted to fly. Some of the greatest men in history had thought about the problem. One of them, for example, was the great Italian artist, Leonardo Da Vinci. In the sixteenth