选择题：《陌上桑》中,运用铺陈手法加以描写的有( )A.采桑的器具 B.罗敷的服饰 C.观者的

下列选项属于马克思主义三个主要组成部分之一的是( )A.民主社会主义B.科学社会主义 C

______(tell)you about it some time before,but I don't remember it now.

The______(expand)of the factory made room for more equipment.

Animal research is irrelevant to our health and it can often produce______(mislead)results

简述实践和认识的含义及二者的辩证关系。