Số đối của -10012 là 10012
Số đối của 2003 là -2003
Số đối của -199 là 199
Chúc bạn học tốt, vote cho mình 5 sao vào câu trả lời hay nhất nhá.
Đáp án:
Giải thích các bước giải:
Số đối của $-10012$ là $10012$
Số đối của $2003$ là $-2003$
Số đối của $-199$ là $199$
I. Read the following passage and choose the best option. It’s hard to imagine education without (1)__________. Without energy, people’s ability to get a decent education is severely (2)__________. Education is acknowledged as a crucial factor in helping people escape (3)__________ poverty. In communities without energy children are often forced out of school to help (4)__________cooking (5)__________or earn money. When they do go to school it has to be in (6)__________, which restricts their hours especially as many children walk for hours to get there. When they arrive home to do their schoolwork, they have no (7)__________to study and all that greets them is darkness. Or they have to rely on kerosene to provide precious light, which is both expensive and dangerous; if a lamp is knocked over it can cause serious burns. Computers, radio or TV are important tools in the (8)__________ education. A (9)__________ of electricity restricts the (10)__________for children to further their education. And teachers don’t want to work in communities where there are no lights, little equipment, no TVs, computers or life after dark. 1. A. like B. energy C. such as D. similar 2. A. approximately B. expressively C. affected D. progressively 3. A. from B. pioneering C. pioneering D. pioneers 4. A. custom B. waiter C. collect D. pill 5. A. tourists B. materials C. pilot D. guess 6. A. Orbit B. Orbition C. Orbital D. daylight 7. A. light B. designed C. draw D. painted 8. A. equipment B. tool C. modern D. furniture 9. A. invitation B. lack C. space D. aviation 10. A. landscape B. departures C. islands D. opportunity
1) The boys stood on the desks. They wanted to get a better view => 2) We learn English . We want to have beeter communication with other people => 3) We lower the volume .We don't want to bother our neighbours => 4) I will write to you .I want you to know my decision => 5) These grils were talking whispers . They didn't want anyone to hear their conversation => Chỉ cần ghi kết quả mik cảm ơn rất nhiều
Bài 1: Giải các hệ phương trình sau: a, {7x + 5y =19 b, { x + 5y =-5 c, { 2x + 3y =-2 3x + 5y = 31 3x + 2y = 11 3x - 2y =- 3 Bài 2: Tìm hai số tự nhiên, biết rằng tổng của chúng bằng 1006 và nếu lấy số lớn chia số nhỏ thì được thương là 2 và số dư là 124. Bài 3: Tìm các giá trị của m để hệ phương trình sau vô nghiệm: { mx + 2y = -2 3x - y =5 Giúp mình với ạ. Xin cảm ơn.
B= ( căn 3 x^2y^3)^2.(-2/3xy^2)^3 Chỉ giúp mình câu này với mình đang cần gấp lắm lunmnnn á
Tính giới hạn lim từ x-> 2 (/x^2+5 -3 / x-2)
a) Tìm số a để đa thức 2x^3 - 3x^2 + x + a chia hết cho đa thức x + 2 b) Tìm n để 2n^2 - n +2 chia hết cho 2n + 1 Giúp mình với ạ !
Giúp em với huhu em ko biết làm
1. I can’t go out because it rains (so) ….......................................…………………………………………………… 2. the film is interesting . We can’t see it again. ( so .. that) ….......................................…………………………………………………… 3. Lan doesn’t study hard and she can’t pass the exam.( so) ….......................................…………………………………………………… 4. The house is very old . We can’t live in it. (so … that ) ….......................................…………………………………………………… 5. The lesson is difficult for him to understand. ( so … that) ….......................................…………………………………………………… 6. Because Lan wasn’t here, she couldn’t help us. (so) ….......................................…………………………………………………… 7. We go swimming . The weather is cold. ( but) ….......................................……………………………………………………
Hoànthànhcácbàitậpvàcáccâusauvớithìhiệntạihoànthànhvàquákhứđơn Bàitập 1: 1) The police....................two people early this morning. (arrest) 2) She............... Japan but now she...............back. (go - come) 3) Dan..................two tablets this year. (already/ buy) 4) How many games.................so far this season? (your team/ win) 5)................the CN Tower when you................in Toronto? (you/ visit - stay) 6)....................your homework yet? – Yes, I.................it an hour ago. (you/ do - finish) 7) There...................an accident in High Street, so we have to use King Street to get to your school. (to be) 8) I...............Peter since I...............last Tuesday. (not/ see - arrive) 9) Frank..................his bike last May. So he...................it for 4 months. (get - have) 10) I'm sorry, I..................earlier, but I..................a lot lately. (not/ write - work) Bàitập 2: 1) Peter............... football yesterday (play) 2) They................. the car. It looks new again. (clean) 3) Last year we.................. to Italy. (be) 4) John and Peggy...................... the book. Now they can watch the film. (read) 5) I................. my friend two days ago. (meet) 6) We never…………….... another country before. (visit) 7) She......................... a new car in 2011. (buy) 8) I'm sorry, but I........................... my homework. (forget) 9)............you.................. the game of chess? (win) 10) The girls........................ their lunch yet. (eat) Bàitập 3 1) I.................my keys, so I can't open that door. (lose) 2) Columbus........................in the New World in 1492. (arrive) 3) Nina..........................her leg. She is still in hospital. (break) 4) He............................here all his life. (live) 5) Colin........................for Brazil this morning. (leave) 6) Last winter Robin..........................with his father in the Alps for three days. (stay) 7) Ellen..........................with her left hand. (always/ write) 8) She...............................a language course in Paris last summer. (do) 9)......................anyone...........................yet? (phone) 10) I...............Paul today, but I.................him last Sunday. (see) Bàitập 4: 1) They..................all the new words. They needn't worry about the test. (learn) 2) Three people.................him in hospital last Friday. (visit) 3) Martin................for 50 miles on scenic routes three weeks ago. (cycle) 4) We........................chicken Tandoori before. (never/ try) 5)................you.......................a job yet? (find) 6) Emily and Molly..............each other for more than 10 years now. (know) 7) First he................to the announcement, then he..................to a café for a drink. (listen - go) 8) She…………........late four times this week. (be) 9) What's that lovely smell in here? - Jasmin.....................a yummy cake. (bake) 10) The Titanic..............an iceberg in 1912 and……........within an hour. (hit/ sink)
Giusp mik 3 câu này 1. There are many factors contributing to air pollution. A: Air pollution results in many consequences. B: Factors contributing to air pollution are numerous. C: Air pollution is contributing to these phenomena. D: Air pollution is the result of burning forests. 2.(18) Sa Pa’s love market has become unique in the culture of the Mong and Dao ethnic groups (17) ______ a long time. Due to the distance between the villages, the market meets once a week on Sunday. On the Saturday night, guys and girls from villages come to Lao Cai (18) ______ one another. They talk, sing and (19) ______ different games according to their ethnic groups’ tradition. After the night, many couples become intimate and promise to see each other again on the following morning. Many of (20) ______ become husbands and wives in the spring. That is why the poets in Lao Cai called the market Sapa’s Love Market. The most popular Love Market in Lao Cai is organized in nowhere else but Sa Pa, where it is gaining more and more (21) ______ of not only the ethnic people but also the travelers from many places in the world. A: meeting B: to meeting C: to meet D: meet 3. She usually spends one hour riding to school every day. A: She usually studies in school one hour every day. B: It usually takes her one hour to ride to school every day. C: She usually goes to school by bike once a day. D: It took her one hour to go to school by bike.
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