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Dùng pascal. Dùng longint, for, while. Ko dùng boolean và lệnh true false. Ai nhanh nhất đc tlhn

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Cho A=n + 1 / n - 3 (n € Z ; n khác 3 ) Tìm n € N để A € Z

Tìm luận điểm, bố cục, cách lập luận của bài Hai biển chết

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B. Vocabulary and grammar: III. Choose the best item among A, B, C or D to complete the sentences: 1. _________ is the most expensive city in the world? – I think it's Tokyo. A. What B. where C. when D. how 2. _________ is your favorite tennis player? – I don't like tennis. A. Where B. Who C. How often D. How long 3. My brother can't swim _________ he's afraid (sợ) __________ water. A. because - of B. and - about C. but - of D. so - to 4. My sister likes going to the cinema _________ I like watching TV at home. A. and B. but C. because D. or 5. ___________ pen is this? Can I borrow it? A. Whose B. Whom C. Who D. Which 6. ___________ are you going to invite to your party next week? A. What B. Who C. Whose D. Where 7. ___________ did you spend in Hanoi? – One week. A. How many B. How much C. How long D. How often 8. ___________ is a person who reads a report in the program. A. A weatherman B. a comedian C. a newsreader D. a guest 9. We use a __________ to change the channels from a distance. A. remote control B. TV schedule C. newspaper D. volume button 10. I want to watch the cartoon _________ I turn on the TV. A. but B. so C. although D. because 11. Jerry is a clever little mouse. A. small B. special C. intelligent D. special 12. 'Let's learn' teaches children to study Maths. It's an __________ program. A. live B. popular C. entertaining D. educational 13. _________ Mai and Lan are interested in listening to music. A. because B. both C. neither D. so 14. The book is __________ the adventure of three close friends. A. on B. from C. at D. about 15. They invite special _____________ to appear in the show. A. character B. guests C. foxes D. audiences. 16. Millions of children _________ the world enjoys the show. A. all B. in C. around C. over 17. The game show this week will test you general __________ about Amazon jungle. A. schedule B. knowledge C. fact D. adventure 18. The program can both _________ and entertain young audiences. A. educated B. education C. educational D. educate 19. The ___________ I like best is Xuan Bac. A. comedy B. comedian C. fun D. funny 20. Where are the children? They __________ in the yard. A. play B. are playing C. is playing D. plays IV. Give the correct form of the word in bracket: 1. That's the ____________ thing I've ever heard. (fun) 2. He laughed at their _______________. (stupid) 3. This is a romantic _______________. (comedian) 4. Xuan Bac is a famous __________ in Vietnam. (comedy) 5. How much does it cost to _______________ a child privately? (educational) 6. Watching television can be very _____________. (educate) 7. The aim of the series is both to _____________ and inform. (entertain) 8. 'Friends' is an _____________ film. (entertainment) 9. Dan Le is my favorite ______________. (weather) 10. The game show 'Who's a millionaire' is very ___________. (famous) V. Give the correct form of the verb in bracket: 1. Look! The teacher (come)___________. She (have)__________ long black hair. 2. My father (drive)___________ me to school everyday, 3. Children shouldn't (buy)___________ firework at Tet Holiday. 4. Students must (go)____________ to school on time. 5. Where John (be)__________ ? He (read)___________ books in the library. He (go)_________ to the library twice a week. 30đ dành cho ai nhanh tay nha

Tìm x: a, x-2/ 15= 9/5 b, x-2/6= 4/x-2 Tìm x và y a, 2/x= y/-7 và x> 0 b, x/5= 3/y và0<x<y Giúp mk nha mn

Tính lượng KMnO4 dùng điều chế 11,2 lít khí Cl2

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