DESIGN: a completely randomized controlled experimental study based on the experimental animals.

设计：以实验动物为研究对象，完全随机设计，对照实验研究。

youdao

DESIGN: a completely randomized controlled experimental study based on the experimental animals.

设计：以实验动物为研究对象，完全随机设计，对照实验研究。

youdao