xóa màu hoặc zẽ lại ko màu =>digi yc đẹp, có tâm

đề bài là : Tính các góc còn lại biết : mọi người vẽ hình giúp em , em cảm ơn

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1. That man used to work wirh me when I lived in Moscow. (who) That’s …………………………………………………………………………. 2. We don’t get lost because we have a map now. If we …………………………………………………………………………… 3. I would prefer you to deliver the sofa on Friday. I would rather ………………………………………………………………….. 4. The bridge was so low that the bus couldn't go under it. It was such ………………………………………………………………………. The bridge was not ……………………………………………………………… 5. Her voice is so sofl that it is impossible for me to hear it. She has ………………………………………………………………………….. 6. I last saw him when I was a student. I haven't …………………………………………………………………………. 7. Susan was too excited to sleep. Susan was ………………………………………………………………………. 8. Robert has not had a job for two years. Robert has been ………………………………………………………………… 9. She will complete the work only she is paid extra. She will not ……………………………………………………………………..

wordform 1 The car was.........for sale and efficient shipping (CONTENT) 2.Politicians and academics pointed to the building's..........contours as a cautionary tale of architectural overeach. (BECOME) 3.It's a ..... article which is fair to both sides of the dispute. (ROUND) 4.He was regarded as a......winner as he beat his opponents in three straight sets (RUN) 5.............. programs are offered to those who want to do professional training while being paid to work (SERVICE) 6. I cast my eyes........and saw the geeese flying in V-line (HEAVEN) 7. There was a .....in the arrangements so I missed my flight. (SLIP) 8.The only thing I could see in him was a certain...........for the job (KEEN) 9. .......water pollution is an important thing for human life. ( PREVENT) 10. The government has a policy of letting the....ill be cared for in the community. (MIND)

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1. The weather was terrible, so we had a very…………..holiday. PLEASE 2. I’m afraid you have been……………..She no longer works for you. INFORM 3. When you are late for school, you should……………to your teacher. APOLOGY 4. Liverpool is an………….city in the north of England. INDUSTRY 5. There are many people living in……………now in the world. POOR 6. Our school has a lot of………………teachers. QUALIFY hoangdiemtrangbach THCS Linh Trung Page 3 7. Unfortunately, the film got……………..reviews. FAVOR 8. We could see some strange……………..on her face. EXPRESS 9. You should write a letter of………………to tha institute. INQURE 10. Environmental…………….is everybody’s responsibility. PROTECT

Cho một bảng vuông 3 × 3 ô. Trong mỗi ô của bảng viết số 1 hoặc số -1. Gọi d ∧i là tích các số trên dòng i (i=1,2,3), c ∧k là tích các số trên cột k (k=1,2,3). a) Chứng minh rằng không xảy ra: d ∧1 + d ∧2 + d ∧3 + c ∧1 + c ∧2 + c ∧3 = 0 b)Xét bài toán trên đối với bảng vuông n × n.

FeCl2+ KMnO4+NaHSO4 -> Cl2+ Fe2(SO4)3+Na2SO4+K2SO4+MnSO4+H2O Cân bằng, viết rõ ra nhé:))) Làm bằng phương pháp oxi hóa khử.

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