đặt tính rồi tính : 266,22:34=.......... các bạn giải thích rõ gúp mình với i'm thanks

Theo em xe ô tô và xe máy khi chạy cùng quãng đường thì nhiệt độ xe nào cao hơn? Vậy chất làm mát ô tô và xe máy có giống nhau không?

Read the following letter. Decide if the statements from 13 to 16 are True or False and choose the correct answer (A, B, C or D) for the questions 17 and 18. Today almost everyone walking down the street has at least one mobile phone in their pocket. That is because many mobile phones are upgraded every year around the world; and most people are interested in changing their old mobile phone for a new one. There has been an estimated number of 90 million unwanted mobile phones in the UK alone! This mountain weighs around 12.000 tonnes, but only about 5°a of it is recycled. What makes us worried most is that mobile phones contain harmful chemicals which are released into the environment when phones begin to degrade and, in addition, large amounts of carbon dioxide are also produced during the manufacture of phones. It seems that the more modern mobile phones become, the worse our environment gets. 13. Mobile phones are modernized every year around the world. 14. Most people are keen on having a newer mobile phone. 15. About half of unwanted mobile phones in the UK are recycled. 16. Old mobile phones do no harm to the environment. 17. What is the passage mainly about? A. The modernization of mobile phones is necessary. B. There are more and more mobile phones in the world. C. The modernization of mobile phones make the environment worse. D. The manufacture of phones produces carbon dioxide. 18. Which of the following can be inferred from the passage? A. Modern mobile phones are worse for the environment than the older ones. B. Mobile phones are getting cheaper and more modern. C. People in the UK are very concerned to recycle old mobile phones. D. Used mobile phones can pollute the environment.

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Viết lại câu sao cho nghĩa ko đổi: 5; Ba is a skillful basketball player. ->Ba plays......................................................................... 6; Would you like milk for breakfast? ->Do................................................................................... 8;Are you interested in collecting stamps? ->Would you...................................................................... 10; I ought not to do my homework today. ->i don't.............................................................................. 11; How much do you weigh? ->How.................................................................................. 12; His brother cycles safely. ->His brother is.................................................................. 13; My father is a careful driver. ->My father drives............................................................. 14; What is wrong with her? ->What is ............................................................................ 15; What is your height? ->How................................................................................. 16; What is the matter with him? ->What is............................................................................

Cho tam giác ABC cân tại A. Chỉ ra yếu tố cạnh góc bằng nhau của tam giác ABC.Cho góc ABC bằng 65 độ tính BAC

Cho hai đường tròn (O; R) và (O’;R’) tiếp xúc ngoài tại A. ( R>R’). Vẽ các đường kính AOB, AO’C. Dây DE của đờng tròn (O) vuông góc với BC tại trung điểm K của BC. a) Tứ giác BDCE là hình gì? Vì sao? b) Gọi I là giao điểm của DA và đường tròn (O') . Chứng minh rằng : ba điểm E, I, C thẳng hàng c) Chứng minh rằng : KI là tiếp tuyến của (O')

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III. Give the correct form of the verbs in the brackets to complete the sentences 19. For over 130 years, Akubra hats (make) _____ its legendary stories in Australia. 20. While I (cross) ____the street, I (step) ____on a banana skin and (fall) _____ heavily. 21. If everyone (speak) _____ the same language, do you think life (be) ____ better? 22. Last night I (read) ____ when suddenly I (hear) _____a shout. 23. Canada (share) _____ the longest land border in the world with the United States. 24. At present, the National Cherry Blossom Festival (occur) _____in Washington, D.C. to celebrate spring’s arrival. 25. Ireland (win) ____the Eurovision Song Contest seven times. 26. It (begin) _____to rain when I (plant) _____ some flowers in the garden. 27. When they (walk) ____down the stairs, they (hear) ____a strange noise. 28. Annually, the National Eisteddfod festival of Wales (take) _____place for eight days at the start of August. 29. Lan (practice) ____the piano while her sister (read) _____comics at 7 o’clock last night. 30. I’d probably buy a laptop if you (be) ______the cheaper.

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