下列各项不属于动物社会行为重要特征的是[ ]
A.群体内部有一定的组织
B.成员之间有明确地分工
C.同一群体个体之间的相互识别
D.群体中形成等级
答案:C
A.Go along this street to the end. B.Are you feeling better now C.I went to the Palace Museum. D.OK, it’s a piece of cake. E.How far is it
A:Can you repair my watch B:______