Leaves of Grass commands great attention because of its uniquely poetic embodiment of ______, which are written in the founding documents of both the Revolutionary War and the Civil War in the United States.

A. the democratic ideals


B. the romantic ideals
C. the self-reliance spirits


D. the religious ideals

中耕可以改变土壤理化性状等，桑园一般进行（）

A．秋耕

B．冬耕

C．春耕

D．夏耕