B
.【That】 nearly all behavior is learned behavior
that 引导主语从句,不可以省这句话怎么翻译That nearly all behavior is learned behavior is a basic assumption of social scientists.几乎所有的行为都是后天习得的,这个是社会科学家的一个基本假定A,C,D都是怎么错的,C是什么意思我都翻了, 我分析一下结构吧:That nearly all behavior is learned behavior(主语从句) is(系动词) a basic assumption of social scientists(表语).