【问题】 Human behavior is mostly a product of learing ( ) the behavior of animals depends mainly on instinctA.soB.unlessC.ifD. while

Human behavior is mostly a product of learing ( ) the behavior of animals depends mainly on instinctA.soB.unlessC.ifD. while

正确答案:D

题目解析:本题出自郑州航空工业管理学院,郑州航空工业管理学院继续教育学院公共英语二,由丰阳塔题库搜集整理。