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        On August 29, 2019, the 4th swimming competition of "Changda construction Cup" to celebrate the 70th birthday of the group, sponsored by the group and organized by the installation company, was held in the swimming pool of Qinghua club, from the group's first, second, third, fourth, fifth, sixth, seventh and eighth construction engineering company, installation engineering company, second installation engineering company, decoration curtain wall company, machinery construction company and labor service company Nearly 60 employees from 17 units including the company, Design Institute, Changda public management company, Changda construction technology company and Minxing small loan company participated in the competition. &According to the competition plan, there are ten items in the competition: Men's 50m freestyle, women's 50m freestyle, men's 50m breaststroke, women's 50m breaststroke, men's 100m freestyle, women's 100m freestyle, men's 100m breaststroke, women's 100m breaststroke, men's 200m freestyle and women's 200m freestyle.         There is no preliminaries in the competition. The results and ranking of each competition item are calculated directly by timing, that is, the first 8 points, the second 7 points, the third 6 points, the fourth 5 points, the fifth 4 points, the sixth 3 points, the seventh 2 points, and the eighth 1 point. On this basis, the group competition ranking is determined according to the total scores obtained by the participants of each participating unit. &After fierce competition, the top three swimmers of each event are: Men's 50m freestyle: the first is sun Yanyan, the second is Liu Jin'an, the third is tan; British women's 50m freestyle: No.1 room & nbsp; Garden & nbsp; No.1 room & nbsp; Garden & nbsp; No.2 Yan Yingzhi (No.4 construction company) & nbsp; No.3 Tang ZhengJuan (No.4 construction company) men's 50m breaststroke: No.1 Tan; ; & nbsp; & nbsp; &In this paper, the author analyzes the characteristics of; &Nbsp; & nbsp; & nbsp; & nbsp; & nbsp; the third Horse & nbsp; Wei (No.4 construction company) women's 100 meter freestyle: the first Wang Xueqing (No.7 Construction Company) & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; the second Wang Shan (installation company) men's 100 meter breaststroke: & nbsp; the first Li Shubo (No.4 construction company) & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; && nbsp; &Nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; the third Dai Yuanjing men's 200m freestyle: the first Li Shubo (the fourth construction company) & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; the second Xu Qinghong (Er'an company) & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; the third Feng & nbsp; Ming women's 200m freestyle: first place Wei Xiaotong (second construction company) & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; second place Wang Xueqing (seventh construction company) & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; third place Tang ZhengJuan (fourth construction company) < br / > & nbsp; & nbsp; & nbsp; top eight in group results are as follows: & nbsp; &Nbsp; & nbsp; & nbsp; first place: No.4 construction company (64 points); second place: No.2 construction company (55 points); third place: public management company (48 points); fourth place: No.7 Construction Company (44 points); fifth place: Installation Company (19 points); sixth place: No.6 construction company (16 points); seventh place: No.8 construction company (14 points); eighth place: Design Institute (12 points). &Swimming competition is a special sport. In addition to employees' hobbies and frequent participation in swimming activities, the participating units need to organize and train well in a systematic way, and finally achieve the purpose of cultivating team spirit through competition. Before this competition, some companies specially organized swimming teams and carried out systematic training. There were many participants and many events, so they got better group results. Some of the participating units have also recruited employees with special swimming skills from the perspective of overall development of the units. It is reasonable to believe that the results of the next competition will be better, the competition will be more fierce, and the individual scores will be more prominent.