Cho tam giác ABC . Trên tia đối của tia BC lấy điểm D sao cho BD= AB. Trên tia đối của tia CD lấy điểm E sao cho CE=AC.Gọi H là chân đường vuông góc kẻ từ D đến AD , K là chân đường vuông góc kẻ từ C đến AE a) Chứng minh HK//DE b) Tính HK, biết chu vi tam giác ABC=10 Giúp mình vs mình cần gấp ( lưu ý : em ms học từ bài đối xứng trục trở xuống thôi ạ )

This book is (good)....... That book. But lan's book is (good).......

Tìm giúp em trạng ngữ Em cho 5 sao Em đang cần gấp

các anh chị giải giùm em với ạ!

Em hãy chỉ ra sự giống và khác nhau giữa đặc trưng thơ của bài thơ “Mây và sóng” và “Chuyện cổ tích về loài người” (số tiếng trong các dòng, số dòng trong một bài, vần, nhịp,...) Kẻ bảng

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Làm giúp mình với :(( II. Use the correct form of the word given in parentheses to fill in each blank. (15 pts) 1. To be fit, you have to lose some 2. Films can broaden our_______ .. (WEIGH) of different ways of life. (AWARE) 223. Some cartoons are really___________ . (ENTERTAIN) 4. Look! The electric signs are flashing___________ . (BEAUTY) 5. Are you th e ___________ member in your family, Hung ? (YOUNG) 6. Don't run too fast if you feel___________ . (COMFORT) 7. Hoang is quite ___________ with his friends. No one talks to him much. (POPULAR) 8. Those are called___________ because they pollute the air. (POLLUTE) 9. To get the job, you have to meet all of these___________ . (REQUIRE) 10. Do you smell something__________ ? Let's get out of here. (BURN) III. Read the passage and choose the word or phrase that best fits each blank. (15 pts) No More Classes The use of computers has meant students can study language program (1)___________ their own speed when and for how long they want - and no need to (2)___________ about the teacher having a favorite or doing (3)___________ another boring lesson. What's (4)___________ , in the virtual classrooms of the future, the student will (5)___________ on his/ her headset, and be transported into an imaginary school, choose his / her class, take the books he / she needs off the shelf and (6)___________ conversations with other computerized students. They might (7)___________ choose to pay a visit to the supermarket or the train station, the bank or the restaurant. At the (8)___________ of a button they would be transported to (9)___________ realistic settings where they could practice their English, maybe getting a hand (10)___________ a virtual English companion. All this, perhaps, at the computer from the corner of their home: no (11)___________ to catch the bus to college, or a plane to England. Exciting? Certainly, and an interesting (12)___________ to traditional classroom lessons. But would it ever (13)___________ the classroom? 23Hopefully not, (14)___________ the need to relate to real people talking about real issues and generally learning a little more about others will always lead language learners to (15)___________ at least a little of their time with real people. 1. A. with B. for C. at D. in 2. A. concern B. upset C. trouble D. worry 3. A. still B. for C. yet D. already 4. A. more B. additional C. besides D. moreover 5. A. place B. put C. set D. get 6. A. take B. do C. catch D. hold 7. A. although B. preferable C. instead D. contrary 8. A. force B. hit C. depress D. push 9. A. so B.such C. like D. alike 10. A. with B. to C. from D. for 11. A. role B. duty C. obligation D. need 12. A. difference B. opposite C. choice D. alternative 13. A. replace B. restore C.succeed D. recover 14. A. definitely B. mainly C. totally D. surely 15. A.spend B. make C. have D. do

Mặt bằng có hướng chiếu như nào

Giúp mình bài 10 ạ mọi người ơi ơi ơi ơi

có 9 cuốn trong kho, 5 cuộn xanh mỗi cuộn dài 36m ,4 cuộn vải hoa mỗi cuộn dài 45m hỏi mỗi cuộn vải dài trung bình bao nhiêu m Mn ơi giúp e đi ạ ! e đang cần gấp