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huongtien.01
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K chép mạng ạ các chuyên gia giúp em vs ạ, nhớ trả lời đầy đủ nếu thiếu là mik spam đó Tại sao gà ăn thóc, lợn ăn cám, trâu bò tiêu hóa được rơm, rạ, cỏ khô?
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Câu 1. Cận thị là A. tật mà hai mắt nằm quá gần nhau. B. tật mà mắt không có khả năng nhìn gần. C. tật mà mắt chỉ có khả năng nhìn gần. D. tật mà mắt chỉ có khả năng nhìn xa. Câu 2. Viễn thị thường gặp ở A. thai nhi. B. trẻ em. C. người lớn tuổi. D. thanh niên. Câu 3. Viễn thị có thể phát sinh do nguyên nhân nào dưới đây? 1. Do cầu mắt quá dài. 2. Do cầu mắt ngắn. 3. Do thể thủy tinh bị lão hóa. 4. Do thường xuyên nhìn vật với khoảng cách quá gần. Đáp án đúng là: A. 1, 2, 3, 4. B. 2, 4. C. 1, 3. D. 2, 3. Câu 4. Đâu là nguyên nhân gây ra cận thị? 1. Do cầu mắt quá dài. 2. Do cầu mắt ngắn. 3. Do thể thủy tinh bị lão hóa. 4. Do thường xuyên nhìn vật với khoảng cách quá gần. Đáp án đúng là: A. 1, 4. B. 2, 4. C. 1, 3. D. 2, 3. Câu 5. Để khắc phục tật cận thị, ta cần đeo A. kính râm. B. kính lúp. C. kính hội tụ. D. kính phân kì. Câu 6. Để khắc phục tật viễn thị, ta cần đeo loại kính nào dưới đây? A. Kính viễn vọng. B. Kính hội tụ. C. Kính hiển vi. D. Kính phân kì. Câu 7. Trong các bệnh về mắt, bệnh nào phổ biến nhất? A. Đau mắt đỏ. B. Đau mắt hột. C. Đục thủy tinh thể. D. Thoái hóa điểm vàng. Câu 8: Nguyên nhân gây ra hầu hết các bệnh về mắt là do A. cầu mắt dài. B. cầu mắt ngắn. C. thể thủy tinh quá phồng. D. virut. Câu 9: Đâu là triệu chứng của tật loạn thị? A. Nhìn các hình ảnh bị mờ, nhòe, không rõ. B. Nhìn bình thường các vật ở xa, không nhìn rõ các vật ở gần. C. Nhìn bình thường vào buổi sáng, nhìn mờ vào buổi tối. D. Nhìn bình thường những vật ở gần, không nhìn rõ các vật ở xa. Câu 10. Kính hội tụ còn có tên gọi khác là A. kính râm. B. kính cận. C. kính lão. D. kính lúp.

1.1 At first I didn’t like my job, but __________________to enjoy it now. A I’m starting B I start 1.2 I don’t understand this sentence. What ________________________? A does mean this word B does this word mean C means this word 1.3 Robert ______________________________away two or three times a year. A is going usually B is usually going C usually goes D goes usually 1.4 How _____________________ now? Better than before? A you are feeling B do you feel C is you feeling 1.5 It was a boring weekend._________________ anything. A I didn’t B I don’t do C I didn’t do 1.6 Matt ____________________ while we were having dinner. A phoned B was phoning C has phoned 2.1 James is on holiday. He ____________________ to Italy. A is gone B has gone C has been 2.2 Everything is going well. There _______________ any problems so far. A weren’t B have been C haven’t been 2.3 Sarah has lost her passport again. This is the second time this ______________--. A has happened B happens C happened D is happening 2.4 Why are you out of breath?_________________? A Are you running B Have you run C Have you been running 2.5 Where’s the book I gave you? What ________________ with it? A have you done B have you been doing C are you doing 2.6 ‘How long ________________________ Jane?’ ‘A long time. Since we were at school.’ A do you know B have you known C have you been knowing 2.7 Sally has been working here ____________________. A for six months B since six months C six months ago 2.8 It’s two years____________________ Joe. A that I don’t see B that I haven’t seen C since I didn’t see D since I last saw 2.9 It______________________ raining for a while, but now it’s raining again. A stopped B has stopped C was stopped 2.10 My mother____________________ in Italy. A grew up B has grown up C had grown up 2.11 _________________a lot of sweets when you were a child? A Have you eaten B Had you eaten C Did you eat 2.12 Jack __________________________ in New York for ten years. Now he lives in Los Angeles. A lived B has lived C has been living 2.13 The people sitting next to me on the plane were nervous. _______________________before. A They haven’t flown B They didn’t fly C They hadn’t flown D They weren’t flying 2.14 _____________________a car when you were living in Paris? A Had you B Were you having C Have you had D Did you have 2.15 I __________________tennis a lot, but I don’t play very much now. A was playing B was used to play C used to play 3.1 I’m tired. ___________________to bed now. Goodnight. A I go B I’m going C. I have gone 3.2 ___________________________ tomorrow, so we can go out somewhere. A I’m not working B I don’t work C I won’t work 3.3 That bag looks heavy.__________________________ you with it. A I’m helping B I help C I’ll help 3.4 I think the weather ___________________nice later. A will be B is C is going to be D shall be 3.5 ‘Anna is in hospital.’ ‘Yes, I know. _________________ her this evening.’ A I visit B I’m going to visit C I’ll visit 4.1 The fire spread quickly, but everybody ______________from the building. A was able to escape B managed to escape C could escape 4.2 I’m so tired that I _______________for a week. A can sleep B could sleep C could have slept 4.3 The story ________________be true, but I don’t think it is. A might B can C could D may 4.4 Why did you stay at a hotel? You___________________ with me. A can stay B could stay C could have stayed 4.5 I lost one of my gloves. I ______________it somewhere. A must drop B must have dropped C must be dropping D must have been dropping 4.6 ‘Why wasn’t Amy at the meeting yesterday?’ ‘She ________________ about it.’ A might not know B may not know C might not have known D may not have known 4.7 What ________________to get a new driving licence? A have I to do B do I have to do C I must do D I have to 4.8 We have plenty of time. We _______________ hurry. A don’t need to B mustn’t C needn’t 4.9 You missed a great party last night. You _______________. Why didn’t you? A must have come B should have come C ought to have come D had to come 4.10 Jane won the lottery. I suggested ________________a car with the money she won. A that she buy B that she should buy C her to buy D that she bought

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