... acquire the skill, and even today many who speak languages with Trang 3/4 - Mã đề thi 248 writing systems never learn to read or write, while some who learn the rudiments of those skills so only ... members of society did not acquire the skill, and even today many who speak languages with writing systems never learn to read or write, while some who learn the rudiments of those skills so only ... pilots, radar is essential for air traffic control, tracking ships at sea, and for tracking weather systems and storms Câu 64: What is the main topic of this passage? A Alternatives to radar B Types...
... indicates a negative reaction Other forms of nonlinguistic language can be found in Braille ( a system of raised dots read with fingertips), signal flags, Morse code, and smoke signals Road maps ... guide, warn, and instruct people While verbalisation is the most common form of language, other systems and techniques also express human thoughts and feelings 61, Which of the following best...