【单选题】哪种文体出现以后”剧诗“有了萌动与发展的契机?()
【单选题】A ____ on the side of a window helps you move a document or graphic up and down within the window.
【多选题】水体旅游资源包括( ) A江、河 B 湖、海 C冰川、雪地 D云、雾
【单选题】在列写结点电压 方程 时,自导 ,互导 ,下列叙述正确的是( )。
【多选题】作为根本法的宪法的效力不同于普通法律,表现在( )
C.
宪法主要规范和限制国家权力,普通法律主要规范和限制公民权利
【单选题】Opportunity costs most often increase as you move down a production possibilities frontier because ( ) .
A.
resources are not completely adaptable to alternative uses
B.
factors of production are limited and human wants are unlimited
C.
efficiencies are generated by large-scale production
D.
economic efficiency is only possible in the short run
【判断题】角色在悲伤的时候,会感到很轻松,整个身体都会舒展开来。