湖北省荆州市2014
高考英语阅读理解、完形填空训练(7)及答案 阅读理解----a words:304 难度系数:★★ 建议用时:7分钟 when you see geese flying along in v formation, you might consider what science has discovered as to why they fly that way. as each bird flaps wings, it creates an uplift for the bird immediately following.by flying in v formation, the whole flock at least 71 percent greater flying range than if each bird flew on its