也就是刘备仁慈，只是将督邮捆绑起来鞭打两百下，换了曹操早杀了督邮。 《三国志 先主传》：先主之弘毅宽厚，知人待士，盖有高祖之风，英雄之器焉。 陈寿在《三国志》中评价刘备 ...

Likewise, for many years it was generally assumed that the entire phylum Nematoda, comprising roundworms, completely lacked cilia or flagella. Now it is known that they contain primary cilia ...

The photosynthetic assimilation of carbon-14 from the external medium by unicellular algae appears to proceed at a rate which is equivalent to the plants' net photosynthesis (the difference ...