1.Cho tam giác abc cân tại A. Từ B kẻ BH vuông góc với AC tại H và từ C kẻ CK vuông góc với AB tại K, 2 đường thẳng BH và CK giao nhau tại I. Chứng minh AI là phân giác của tam giác ABC. 2. Cho tam giác ABC vuông tại A. Dựng ở nửa mặt phẳng bờ BC, ko chứa A, tam giác vuông cân CDB tại D. C/m AD là phân giác góc BAC Help em với mọi người. Em đang cần gấp. Thanks mọi người

Xác định và phân tích hiệu quả nghệ thuật của các biện pháp tu từ trong đoạn thơ sau: “Sương trắng rỏ đầu cành như giọt sữa, Tia nắng tía nháy hoài trong ruộng lúa, Núi uốn mình trong chiếc áo the xanh, Đồi thoa son nằm dưới ánh bình minh...” (Trích Chợ Tết, Đoàn Văn Cừ, Thi nhân Việt Nam, NXBVH 1997)

V. Rewrite these sentences without changing the meaning 0. Jane’s mobile phone isn’t the same as mine. → My mobile phone is different from Jane’s. 1. When he was young, he lived in Hanoi. → He used ............................................................................................................. 2. What a pity I don’t have a laptop. → I wish ........................................................................................................................ 3. “Why don’t we go to the countryside this weekend?”, said Scott. → Scott suggested .......................................................................................................... 4. In spite of taking a taxi, Tim still arrived late for the meeting. → Although Tim .......................................................................................................... 5. The river is too dirty for us to swim in. → The river is not ............................................................................................................

Viết 10-12 câu giải thích câu "Thất bại là mẹ thành công". cảm ơn mn

Grammar 41. I love___________ dogs. I have three of them. A. a B. an C. the D. Ø 42. There are always ___________ taxis outside the station. A. a B. the C. Ø D. an 43. “ Have you made plans for the summer?” ‘Yes. ___________ to Spain.’ A. We go B. We’re going C. We’ll go D. We’re going to go 44. One day, people ___________ on Mars in special buildings. A. will live B. shall live C. are going to live D. are living 45. “John is better player than Martin, isn’t he?” ‘Oh, yes. ___________ the match tomorrow, I expect.’ A. He’ll win B. He wins C. He’s winning D. He’s going to win 46. I’ll buy a ticket as soon as I ___________ my pocket money. A. will get B. would get C. get D. got 47. ___________ European expert was invited to speak to the committee. A. a B. an C. the D. Ø 48. That’s the phone ringing. Don’t move. I ___________ answer it! A. will B. won’t C. am going to D. am not going to 49. My parents _________ (call) me from the airport when they arrive. A. will call B. shall call C. call D. are going to call 50. My sister is travelling around ________ United States at the moment. A. a B. an C. the D. Ø 51. I’ll meet you at __________ Heathrow airport and then we can check in. A. a B. an C. the D. Ø 52. Several million visitors _________ year are attracted to _________ ski slopes of _________ Alps. A. a –the - the B. a – Ø -the C. a –the- Ø D. Ø – the -the 53. ____________ Middle East is one of the world’s hot spots. A. a B. Ø C. the D. an 54. We believe that she _________ recover from her illness soon. A. will B. shall C. might D. is going to 55. According to the weather forecast, it ________ snow tomorrow. A. shalln’t B. won’t C. isn’t going to D. may not 56. I can’t come tonight – I _________ my grandparents. A. visit B. visited C. ‘m going to visit D. ‘ll visit 57. Next month, the National Theatre _________ a new production of Hamlet. A. put on B. putting on C. shall put on D. is putting on 58. I_________ a successful author one day. A. be B. ‘m being C. go to be D. ‘m going to be 59. According to the programme, the show_________ at nine o’clock. A. starts B. is starting C. will start D. shall start 60. A man and a woman are standing outside my house. _________ man looks fierce but _________ woman seems gentle. A. The – a B. A – The C. A – a D. The – the 61. Hoa’s parents wish she _________ the scholarship next-year school. A. would get B. will get C. gets D. got 62. We _________ have time to help you tomorrow. A. may B. must C. will D. could 63. Leave early so that you ______ miss the bus. A. didn’t B. won’t C. shouldn’t D. mustn’t 64. Don’t worry about your interview. You _________ be fine. A. will B. won’t C. might D. could 65. Sheena _________ move to the countryside. She loves city life. A. can’t B. can C. will D. won’t 66. _______ Tate Gallery is the main modern art museum in London. A. Ø B. a C. the D. an 67. I am on _______ night duty. When you go to _______ bed, I go to _______ work. A. a – the – the B. Ø – Ø - Ø C. Ø – the - the D. Ø – the – Ø 68. The waste gases of cars and factories are the primary reasons for _______ air pollution. A. a B. an C. the D. Ø 69. _______ British Prime Minister lives in _______ Downing Street 10. A. the - Ø B. a – the C. the - the D. Ø – a 70. Don't stay in that hotel. _______ beds are very uncomfortable. A. Ø B. the C. a D. an

cho 3 điểm A;B;C thẳng theo thứ tự sao cho AB > BC . qua trung điểm H của AC kẻ tiếp tuyến HI, HK với đtròn đk BC tại I và K Các tia CI,CK lần lượt cắt trung trực của AC tại D và E a) Tứ giác AECD là hình gì b) C/m: ^DHI = ^DCE c) C/m: D,B,K thẳng hàng các bạn giải rõ ràng và làm nhanh giúp mình nha, mai mình cần rồi ạ :(( mình cảm ơn

IV. Read A young man from Germany named Levi Strauss arrived in California in 1850. He went there to sell things to the miners. He saw that the miners needed strong pants, so he began to make them. He used cloth that people make tents from. He put rivets on the pockets to make them strong because the man put rocks in their pockets. These pants were very strong and lasted a long time. The pants became very popular immediately. Later Mr. Strauss started making jeans from cotton cloth from Nimes, France. People called this cloth denim. Christopher Columbus used denim for the sails of his ships. Sailors in Genoa, Italy, wore denim pants. The word “jeans” comes from the word “Genoa”. Mr. Strauss made the first jeans in the United States, but the idea and the kind of cloth came from Europe. The names came from France and Italy. 1. Why did Levi Strauss go to California? ………………………………………………………………… 2. What did the miners in California need? ……………………………………………………………… 3. Where were the first jeans made by Mr. Strauss? ……………………………………………………… 4. Rivets ______. A. make good sails B. make tents strong C. come from Genoa D. make the pockets of jeans strong 5. The word denim comes from the name of a city in ______. A. France B. India C. Italy D. Germany

các giải pháp kĩ thuật về ứng phó biến đổi khí hậu và bảo vệ môi trường

Helpppppppp me! Mai nộp rồi ạ

Giúp mình bài 2.2 vs ạ, mình đang cần gấp. Mình cảm ơn ạ