GMAT
Snakes molt their skins regularly, so as to regenerate skin worn by ground contact and to eliminate parasites, such as ticks and mites, and these shed snake skins made ancient people venerate the snake as a symbol of resilience and healing.
Snakes molt their skins regularly, for the purpose of regenerating skin worn by ground contact and for eliminating parasites, like ticks and mites, and this made ancient people venerate the snake as a symbol of resilience and healing.
题目基本信息