cho tam giác ABC vuông tại A ,có AB=3cm AC=4cm a.Tính độ dài BC b.CD là tia phân giác của góc C , vẽ DE vuông góc với BC CM :tam giác ACD=tam giác ECD

A.138<13.... B.....67<212 C.4...5<412 Đ.7...4>764

Hộ câu 3 nha mn Nhanh một chút đừng chậm quá

I. Choose the best answer to complete each of the following sentences. 1. You should eat a lot of fruits and vegetables because they vitamin A, which is good for the eyes. A. run B. take C. provide D. get 2. The health from that diet expert is that you should eat less junk food and count your calories if you are becoming fat. A. advices B. ideas C. tip D. tips 3. The seafood I ate this morning makes me feel all over. A. itchy B. weak C. running D. well 4. If you want to be fit, stay outdoors more and do more activities. A. physics B. physic C. physical D. physically 5. Do more exercise eat more fruit and vegetables. A. and B. so C. but D. although 6. After working in computer for long hours, you should your eyes and relax. A. wake B. rest C. sleep D. sleep in 7. Eat less high-fat foods to keep you from fat. A. gaining B. reducing C. getting D. rising 8. We should follow the advice from doctors and health in order to keep fit. A. managers B. experts C. people D. workers 9. Have a healthy and you can enjoy your life. A. lifeline B.lively C. lives D. lifestyle 10. They go outside even when it’s cold. A. swims B. swiming C. swimming D. swam 11. Rob eats a lot of fast food and he on a lot of weight. A. spends B. brings C. takes D. puts 12. We need to spend less time computer games. A. playing B. to playing C. play D. to play 13. To prevent , you should eat a lot of garlic and keep your body warm. A. cold B. mumps C. flu D. headache 14. Be careful with you eat and drink. A. who B. this C. what D. that 15. Eating a lot of junk food may lead to your . A. pain B. stomachache C. obesity D. fitness 16.In order to have good , you should eat lightly and laugh cheerfully. A. spirit B. body C. health D. mood 17.Do you believe that eating carrots helps you see at night? A. most B. the most C. much more D. less 18. We should try to keep everything around us clean and then flu will find it to spread. A. difficultly B. difficulties C. difficult D. difficulty 19. My father does morning every day. A. running B. well C. exercise D. weak 20. We should play sports or do exercise in order to stay in . A. fit B. health C. look D. shape 21. You can avoid some diseases by yourself clean. A.keeping B.taking C.looking D.bringing 22.The Japanese eat a lot of fish instead of meat they stay more healthy. A.but B.because C.although D.so 23. She looks tired. What’s the ……….. with her? A. matter B. happen C. wrong D. right 24. Minh is absent from class today ……….. he is ill. A. but B. because C. when D. so 25. He is a(n) ______. He doesn't have a habit of eating meat. A. patient B. expert C. vegetarian D. adult 26. She usually eats some sweet cakes before going to sleep, so she may put____ weight if she continues to do that. A. in B. up C. on D. into 27.Watching too much television is not good you or your eyes. A.with B.to C.at D.for 28.When you have flu, you may have a cough and a nose. A.runny B.running C.flowing D.noisy 29.When you have a temperature, you should drink more water and rest . A.most B.more C.most D.less

1. You must /lighters and candles/ keep matches, / can cause /out of children’s reach /because they/ a fire  You must_____________________________________________________________________ _____________________________________________________________________________ 2. You have / before children /the bath water / to check/ get in/temperature  You have ____________________________________________________________________ 3. before the exams/ carefully/ ought to learn/ the students/ their lessons  The students _________________________________________________________________ 4. can look after/ so much/ themselves/ don’t worry/ the children  Don’t worry__________________________________________________________________ 5. all the lights/ in order to/ before leaving/ save electricity/ to turn off/ remember  Remember___________________________________________________________________ 6. a good thing / clean and tidy/ the house/ to keep/ it is/ for you  It is________________________________________________________________________ 7. an electrical socket/ it is/ to put/ unsafe/ into/ the knifes.  It is________________________________________________________________________ 8. in the kitchen/ the children / because it is / We mustn’t let/ play/ a dangerous place  We mustn’t let _______________________________________________________________ 9. house hold objects/ young children/ many/ dangerous/ are/ don’t understand that  Young children ______________________________________________________________ 10. Toys / loose parts /under 3/ small / for children/ shouldn’t have  Toys_______________________________________________________________________

they don't know how to speak chinese --->wish cấu trúc: s+wish/wisher

Write the sentences about what you like or don’t like doing in your free time, beginning with the following. I adore …………………………………… I love …………………………………… I fancy…………………………………… I don’t like…………………………………… I don’t like…………………………………… . I detest……………………………………

VẼ cu shin+bạch tuyết + Himawari Y/c Full màu nhân vật, Ko cần full nền

1 nguyên tử có tổng số hạt là 34 trong đó số hạt mang điện nhiều hơn số hạt ko mang điện là 10 hãy xác định số (n , e) trong nguyên tử đó

So sánh 2 số hữu tỉ có 5 tính chất , đó là những tính chất nào ?