Group usually refers to the aggregation of various social members relative to individuals. In fact, it is a collection of people. It can be divided into formal group, informal group and quasi group. Quasi group refers to the group that has no organizational structure, has some connection between people, has a certain degree of common concern, and may form a group at some time, but has not been organized yet.
Which of the followings belongs to quasi groups?
Officers and soldiers of a certain unit saw a car encounter a mudslide during training and quickly organized rescue