组三的概率是多少

简介：Wang Tian came to look at the bungalow not far across the way, frowned and said, oh, this is not easy to handle. There are Japanese soldiers there during the day. Besides, although the Japanese soldiers have the task of guarding during the day, they are also on duty at night. We went back to bed after work. By then, there were only three of us, which was really difficult!