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2 năm trước
hấp thụ hết 5,6 lít so2 vào v lít dd baoh2 1M thu được 29,55 g kết tủa .giá trị nhỏ nhất của v là bao nhiêu?
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PART 3 QUESTIONS 14–18 For each question, choose the correct answer. Jack Calder Violin player Jack Calder plays in the Australian band, Ocean Blue. Jack Calder started playing the violin when he was ten. ‘My music teacher played and one day he asked if anyone wanted to learn. Some girls put up their hands and so did I. I didn’t have a violin, but my uncle said I could use his. The lessons were really hard at first, but playing the violin soon became important to me.’ After leaving school, Jack moved to Melbourne. For a time, he preferred listening to music to playing it. The rock music he listened to sounded very different from violin music, so he bought an electric violin, and started putting the things he liked about rock music into the music he played on his violin. A year later, Jack met a small group of Melbourne musicians. ‘We all thought about music in the same way and started Ocean Blue together. A year later, we were playing lots of concerts, and our music was selling well. But we didn’t want this to make us different people. We didn’t want to stop being friends.’ Jack meets many people who think playing the violin is an unusual career, but he doesn’t agree with them. ‘I think it’s the best thing in the world. I guess I’m lucky that way. The internet has changed music, but when I walk into a violin shop it’s like entering another world – one where time has stopped. Someone has looked after these beautiful old instruments that are two or three hundred years old. I think that’s amazing.’ Test 1 Cambridge University Press 978-1-108-69463-6 — A2 Key 1 for Revised Exam from 2020 Student's Book with Answers with Audio Series: KET Practice Tests Excerpt More Information © in this web service Cambridge University Press www.cambridge.org 13 Reading and Writing 14 What do we learn about Jack in the first paragraph? A He was the only person at school to play the violin. B He learned to play on an instrument that he borrowed. C He enjoyed playing the violin as soon as he started learning. 15 What is the writer doing in the second paragraph? A explaining why Jack thought some music was easy to play B saying why only a few people liked the music Jack played C describing how Jack changed the kind of music he played 16 What does Jack say about Ocean Blue? A Nobody in the band liked travelling far to play in a concert. B The band members were interested in different kinds of music. C Everyone wanted to stay friends when the band became successful. 17 Why does Jack think he is lucky? A He meets lots of people. B He loves what he does. C He has an unusual career. 18 Jack thinks it is a good idea A to keep some things that people used in the past. B to make more music available on the internet. C to teach more people to play an instrument.

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