14.cho Δ abc có bc =2ab ,m là trung điểm của cạnh bc ,d là trung điểm của bm . cm ac=2ad

Tổng các số nguyên x thỏa mãn : - 20 ≤ x < 20 là : Ai làm xong đầu mk vote 5 và chọn trả lời hay nhất kiêm lun cảm ơn

Viết CTHH của các oxit sau : 1) Crom(III) oxit 2) Thủy ngân (II) oxit 3)Magan (VII) oxit 4) Nitơ đioxit 5) Nhôm oxit 6) Slic đioxit

Mik cần gấp giúp mik với Ai nhanh mik tich nha

Choose the word whose underlined part is pronounced differently from that of the others 1. A. though B. their C. thin D. them 2. A. flower B. poster C. local D. host 3. A. fair B. marry C. chair D. hair 4. A. reason B. feature C. idea D. teacher 5. A. bath B. healthy C. rather D. everything Odd one out 6. A. match B. stadium C. gym D. swimming pool 7. A. run B. play C. watch D. sport 8. A. better B. taller C. uglier D. smallest 9. A. game B. chess C. aerobics D. karate 10. A. broadcast B. producer C. report D. act Choose the best answer to fill in the blank. 11. I ________ Tom and Jerry many times. A. see B. am seeing C. have seen D. saw 12. ________ the film is late, I will wait to watch it. A. Although B. When C. But D. Because 13. Hoa ________ three goals for my team and he made it a hat trick. A. scored B. scores C. played D. got 14. ……………………. noise. Your brother is sleeping. A. Don’t make B. make C. making D. made 15. The mother told her son: “________swim in the lake. It's very dangerous." A. Do B. Don't C. can't D. Not swim 16. My sister likes going to the cinema ________ I like watching TV at home. A. or B. but C. and D. because 17. I first ________Ho Chi Minh City in 2013. A. been to B. visited C. go D. went 18. ……………………. do you play chess? – I never play chess A. How often B. When C. Why D. Who Choose the correct answers to complete the passage. Television is one of man’s most important (19)_____ of communication. It brings pictures and sounds from around the world into millions of homes. Through television, home viewers can see and learn (20)_____ people, places and things in faraway lands. TV even takes its viewers out of this world. It brings them coverage of America’s astronauts as the astronauts explore (21)_______ space. In addition to all these things, television brings its viewers a steady stream of programs that are (22)______ to entertain. In fact, TV provides many (23)_____ entertainment programs than any other kind. The programs include dramas, comedies, sports, and (24)______ pictures. 19. a. ways b. means c. ranges d. shows 20. a. at b. in c. for d. about 21. a. deep b. large c. outer d. open 22. a. happened b. designed c. composed d. guided 23. a. more b. even c. most d. hardly 24. a. lovely b. clear c. motion d. full

Bai 1 Cho x va -2013< hoac bang x< hoac bang 2015 Tinh tich cac so nguyen x Bai 2 a) Tim gia tri lon nhat cua bieu thuc B=7-3x-9^2 b)Tim cac so nguyen n sao cho 3n+8 chia het cho n-1 CAC BAN OI GIUP MK VOI HU HU HU DUNG BAN NAO TRA LOI K DUNG VOI CAU HOI NHA NEU BAN NAO TRA LOI DUNG VA NGHIEM TUC THI MK SE CHO CAU TRA LOI HAY NHAT VA VOTE CHO

tìm hai số nguyên a b biết a 0 và a.(b-2)=3

Viết đoạn văn trình bày cảm nghĩ của em về nhân vật người anh trong “Bức tranh của em gái tôi”. Từ đó suy nghĩ về tác hại của lòng ích kỉ, đố kị.

I. Choose the word which is pronounced differently from the others. 1. A. clothes B. watches C. benches D. classes 2. A. read B. teacher C. eat D. head 3. A. pens B. books C. rulers D. erasers 4. A. kite B. twice C. swim D. pastimes II. Choose the best answer: 1. I'd like................. bananas, please! a. any b. some c. many d. much 2. Lemonade, apple juice and................. are cold drinks. a. vegetables b. noodles c. iced tea d. beans 3. She isn't fat. She is.................. a. thin b. heavy c. strong d. light 4. Lan................. aerobic everyday. a. does b. plays c. goes d. dances 5.................. sports do you play? a. What's b. Who c. Which d. How 6. We need a tent to go................. a. fishing b. swimming c. camping d. jogging 7. They are going to stay................. their grandparents this summer vacation. a. in b. at c. by d. with 8. What is your nationality? I am................. a. Vietnamese b. Vietnam c. England 9. There are only two................. in my country. a. weather b. seasons c. citadel d. cities 10.................. do you go to school? Every afternoon. a. How much b. How often c. How many d. How III. Supply the correct form of the verbs: 1. Look! Mai................. aerobics. (do) 2. My father ............................ TV every day. (watch) 3. Minh is going................. Ha Long Bay. (visit) 4. They................. to Ha Long Bay last summer. (go) IV. There is ONE mistake in each sentence. Find it and correct it. 1. I like watching TV. There are a good film on TV tonight. 2. What is he often do when it’s hot? 3. How much rooms are there in the new house? 4. I’m very thirsty. I like any apple juice. 5. How many children do your sister have? V. Rearrange the words to make meaningful sentences 1. want/ Tom/ Mary/ and/ glasses/ two/ of/ water. 2. sister/ my/ going/ is/ to/ live/ country/ the/ in. 3. going/ dinner/ tonight/ is/ have/ to/ where/ Lan? 4. the/ spring/ in/ what/ weather/ is/ like/ the? 5. building/ tallest/ the/ is/ this/ city/ the/ in/ world. 6. Lan's house/ smaller/ is/ house/ my/ than. 7. she/ never/ with/ camping/ goes/ her/ friends. 8. often/ she/ go/ does/ how/ cinema/ to/ the?

Mn giúp giùm mk với ạ. Mk đg cần gấp