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nguyenthuyrio
1 năm trước
Ciu 1. Tinh các tích phân sau a) I = [x² - 1) dx. b)/ = S cos'x. sinx. dx. <)K = S,(x + 1). Inx.dx
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Các câu hỏi liên quan

X. Fill in the blanks with the words given. and or but so because however therefore then before after 1. What would you like, tea ¬_________________ coffee? 2. I was late for class this morning _________________ the bus was late. 3. Nam didn’t study hard, _________________ she didn’t pass his exam. 4. Nga was very tired. _________________, she tried to finish her homework. 5. We can’t walk home _______________ it is very dark. 6. It’s raining heavily, _______________ she can’t go for a walk. 7. I got out of the car ________________ walked into the house. 8. The weather was lovely. ________________, we stayed in the garden. 9. ___________________ we went to bed, I locked all doors. 10. We turned off the lights and __________________ left the room. 11. I had a shower ______________________ I played football. 12. The little boy was wet and cold, _________________ he wasn't hurt. 13. It was very cold. ___________________, we didn't go out. 14. I sat in the kitchen ___________________ read a book. 15. I do some exercises __________________ I go to work in the morning. 16. I had to walk to work ___________________ the car wouldn't start. XI. Fill in each gap with a suitable preposition. 1. I am looking forward _______________ your reply. 2. Clean air provides us _______________ a healthy supply of oxygen. 3. The girl is waiting _____________ her father _____________ the school gate. 4. Sorry, I'm _______________ a hurry. 5. What a pity! We left him _______________ saying goodbye. 6. The school library is open _______________ every student. 7. I'm very grateful _______________ you for your invaluable help. 8. He smiled ________ me and then spoke _________ me _________ a foreign language. 9. People are looking ____________ more oil deposits. 10. You have to put ____________ your toys and go to bed. It's late. 11. Why don't we turn ____________ television? The seven-o'clock news is on now. 12. They turn ____________ the water while they repair a burst pipe. 13. If we keep ____________ using more and more cars, we'll run out of gas. 14. There is a power cut and all the lights went ____________. 15. Who is looking ____________ the baby when you are away? 16. Are you still looking ____________ a job? 17. Her father gave ____________ smoking last month. 18. Lan often looks ____________ her younger sister when her mother is out of town. 19. It will be raining ______________ the coast of Vung Tau. 20. The children are going to a park ______________ the other side of the river. XII. Choose the word whose underlined is pronounces from that of the other words. 1. A. method B. death C. think D. those 2. A. nature B. natural C. explain D. nation 3. A. kitchen B. torch C. mechanic D. church 4. A. ocean B. beach C. clean D. reason 5. A. climb B. suburb C. comb D. doubt 6. A. sprayed B. reduced C. minimized D. covered 7. A. recent B. replacing C. efficient D. faucet 8. A. ultimate B. structure C. tumble D. suggest 9. A. fuel B. supper C. refuse D. duty 10. A. decide B. precise C. cities D. besides 11. A. picnic B. similar C. mysterious D. Dynamite Hộ mik vs ạ mik dg cần gấp thanks trc

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