Webb24 feb. 2024 · This echolocation in bats is often compared with radar, the principle of which is similar. 练习题:. Choose correct answers to the question: 1.The main purpose of this passage is to ______. A. describe that animals can make different sounds. B. prove that animals’ voices can play practical roles. C. inspire the readers to make more ... Webbvoice plays a strictly utilitarian role. To get a full appreciation of what this means we must turn first to some recent human inventions. Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back. The further off this solid obstruction the longer time will elapse for the return of the echo.
2.4 Utilitarianism: The Greatest Good for the Greatest Number
Webb30 maj 2024 · 新概念4-7. Not all sounds made by animals serve as language, and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role. To get a full appreciation of what this means we must turn first to some recent human inventions. Everyone knows that if he shouts ... WebbIt’s on these devices that we spend a large number of our waking hours while either at work, play, or communicating with coworkers, friends, and family. IT influences almost … pixo nissan 2011
Lesson 7 bats_百度文库
Webbstrictly adv. 明确的. strict adj. 1. 严格的 a strict teacher , strict discipline , be strict with sb. 2. 明确的 the strict truth 千真万确的事实 strict neutrality 绝对中立 a strict vegetarian 一 … Webb2 okt. 2015 · strictly adv. 明确地 utilitarian adj.实用的 appreciation n. 理解 elapse v. 障碍物 hull n. 消逝 interval n. 船体 receipt n. 间隔 apparatus n. 收到 shoal n. 仪器 herring n. 鱼 … Webb26 maj 2024 · strictly adv. 明确的 utilitarian adj.实用的 appreciation n.理解 obstruction n.障碍物 elapse v.消逝 hull n.船体 interval n.间隔 receipt n.收到 apparatus n.仪器 … banjo cycles sunningdale